How to find vertical and horizontal asymptotes calculator - • 3 cases of horizontal asymptotes in a nutshell.

 
We illustrate how to use these laws to compute several limits at infinity. . How to find vertical and horizontal asymptotes calculator

5 c + 3) / c (the cost per cone if the first is $3 and each additional is only $2. However, a function may cross a horizontal asymptote. To find a horizontal asymptote for a rational function of the form , where P(x) and Q(x) are polynomial functions and Q(x) ≠ 0, first determine the degree of P(x) and Q(x). The hyperbola is vertical so the slope of the asymptotes is. As an example, look at the polynomial x ^2 + 5 x + 2 / x + 3. Domain and Asymptotes. Start practicing—and saving your progress—now: https://www. In this article, we will explain how to calculate vertical and horizontal asymptotes and provide you with a step-by-step guide on how to use our calculator. x2 + 2 x – 8 = 0. Embed this widget ». An asymptote is a line that a curve becomes arbitrarily close to as a coordinate tends to infinity. Step 2: Observe any restrictions on the domain of the function. Find the lines that a function approaches but never touches. Example 1 : f(x) = 4x 2 /(x 2 + 8) Solution : Vertical Asymptote : x 2 + 8 = 0. Explore math with our beautiful, free online graphing calculator. That asymptote represents the minimum cost per cone, as the number of cones. The vertical asymptote equation has the form: , where - some constant (finity number) The vertical asymptote of the function exists if. Find the horizontal and vertical asymptotes of the function \[f(x)=\dfrac{(x-2)(x+3)}{(x-1)(x+2)(x-5)}\nonumber \] Solution. Explore math with our beautiful, free online graphing calculator. 3x on top, x on the bottom. So, we clearly have a vertical asymptote. Answer: There is no HA in the supplied. ⇒ x = 2/3. We will find the vertical asymptotes of a rational function, horizontal asymptotes of a ratio. In "Parametric", "Polar", and "Sequence" graphing modes this option is not available. Use * for multiplication. The function is in its simplest form, equate the denominator to zero in order to determine the vertical asymptote. In your example, As x gets really big, y gets really, really small. To find my videos organized as playlists, please visit:http://100worksheets. h ( x) = x 2 + 4 x − 32 x 2 − 8 x + 16. Site: http://mathispower4uB. There are two types of asymptote: one is horizontal and other is vertical. Let's look at an example of finding horizontal asymptotes: Find the horizontal asymptote of the following function: First, notice that the denominator is a sum of. We discuss finding a rational function when we are given the x-intercepts, the vertical asymptotes and a horizontal asymptote. x − 1 x 2 + 5 x + 6 1. My Notebook, the Symbolab way. If it appears that the curve levels off, then just locate the y. How to find asymptotes: Skewed asymptote. Even without the graph, however, we can still determine whether a given rational function has any asymptotes, and calculate their location. Log InorSign Up. Depending on what you consider a vertical asymptote, it may. To find the asymptotes and end behavior of the function below, examine what happens to x and y as they each increase or decrease. Some have oblique asymptotes instead. A function cannot cross a vertical asymptote because the graph must approach infinity (or \( −∞\)) from at least one direction as \(x\) approaches the vertical asymptote. f(x) = 6x4 − 3x3 + 12x2 − 9 3x4 + 144x − 0. Recognize a horizontal asymptote on the graph of a function. Horizontal asymptotes. To find the asymptotes of a function, determine its vertical, horizontal, and oblique asymptotes. First, we check to see that the two polynomials are written in descending degrees. The complete code including code from a previous post I wrote about finding a functions. Find the vertical and horizontal asymptotes of the functions given below. Start practicing—and saving your progress—now: https://www. To find vertical asymptotes, look for places in the equation where it becomes undefined, such as when the denominator is equal to zero. x = –4 or x = 2. the limit as x-> infinity) When the degree of the numerator is larger than the degree of the denominator, that means that the value of the numerator is going to increase much more quickly than the value of the demoninator. They occur when the graph of the function grows closer and closer to a particular value without ever. (3) (x^3)/(x+2) and on. Follow the examples below to see how well you can solve similar problems: Problem One: Find the vertical asymptote of the following function: In this case, we set the denominator equal to zero. Problem 6. Okay, so we’re given the above function and are asked to determine whether or not it has horizontal asymptotes and to identify them if it does. Generating PDF. If , then the horizontal asymptote is the line. However, a. This has to do with the nature of horizontal asymptotes. Even without the graph, however, we can still determine whether a given rational function has any asymptotes, and calculate their location. Use * for multiplication. The graph of a rational function never intersects a vertical asymptote, but at times the graph intersects a horizontal asymptote. Or, it could do something like this. As we approach three from values larger than three, from the right-hand side, our function is plummeting down. What are the steps for finding asymptotes of rational functions? Given a rational function (that is, a polynomial fraction) to graph, follow these steps: Set the denominator equal to zero, and solve. These Lines are called Horizontal Asymptotes. There is a vertical asymptote at x=2. My question is the following: what is the relationship between vertical and. For more instructions and videos, check out my iBook: TI-Nspire Step by Step Guide for the IB Teacher and Student: https://books. To find the inflection point of f, set the second derivative equal to 0 and solve for this condition. Limits and asymptotes have rules that relate them. There are three cases: Case 1: If m>n, then f has no horizontal asymptotes. Answer The function and the asymptotes are shifted 3 units right and 4 units down. x − 1 x 2 + 5 x + 6 1. The figure shows the graph of the. But, because the numerator has a higher degree than the denominator, it does not have a horizontal asymptote either. An asymptote is, essentially, a line that a graph approaches, but does not intersect. Figure 4. Calculator Suite · Graphing Calculator · 3D Calculator · CAS . Putting x = 3 in the function definition makes the denominator equal zero, which tells you that you have an asymptote. Area of Surface of Revolution. Examples Example 1. Then, use a calculator to answer the question. 2 x x + 3 1. Vertical Asymptotes. A function cannot cross a vertical asymptote because the graph must approach infinity (or \( −∞\)) from at least one direction as \(x\) approaches the vertical asymptote. 42 intersects the horizontal asymptote y = 1 y = 1 an infinite number of times as it oscillates around the asymptote with. Vertical Asymptote Calculator: A vertical asymptote calculator is a tool that determines the vertical asymptotes of a given function. ASYMPTOTES 3 Example 2. Step 1: In the input field, enter the required values or functions. If x is close to 3 but larger than. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. 0 = g x. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations. 1:1 which is y = 1. Click here to learn how to discover the horizontal asymptote using tricks and shortcuts. Find the critical points: These are the points where the function is undefined or discontinuous. Whereas vertical asymptotes are found by locating the zeroes of the denominator, the horizontal asymptote is found by comparing degrees and perhaps. • 3 cases of horizontal asymptotes in a nutshell. 2 3 ( ) + = x x f x holes: vertical asymptotes: x-intercepts:. If the degree of the numerator and. We illustrate how to use these laws to compute several limits at infinity. In order to figure out if we have asymptotes, we will need to evaluate our function using limits. Solution: Method 1: Use the definition of Vertical Asymptote. Axes of symmetry. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations. Step 4: Find any value that makes the denominator. For each function fx below, (a) Find the equation for the horizontal asymptote of the function. They occur when the graph of the function grows closer and closer to a particular value without ever. Free functions asymptotes calculator - find functions vertical and horizonatal asymptotes step-by-step. Explore math with our beautiful, free online graphing calculator. In this example, only the first element is a real number, so this is the only inflection point. As x gets infinitely small there is a horizontal asymptote at y=−1. The excluded points of the domain follow the vertical asymptotes. Case 3: If the degree of the denominator = degree of the numerator, there is a horizontal asymptote at y = an bn, where an and bn are respectively the leading coefficients of the numerator and denominator of the rational function. Now for the horizontal asymptote! The. It is also possible to determine the domain and vertical asymptote of any logarithmic function algebraically. The function is in its simplest form, equate the denominator to zero in order to determine the vertical asymptote. Horizontal analysis makes comparisons of numbers or amounts in time while vertical analysis involves displaying the numbers as percentages of a total in order to compare them. Solved Example: Find asymptote of given function f (x) = (x + 5) / (x - 3) Solution : To find a vertical asymptote, equate the denominator of the rational function to zero. Asymptote Calculator. Step 2: if x – c is a factor in the denominator then x = c is the vertical asymptote. We know that a horizontal asymptote as x approaches positive or negative infinity is at negative one, y equals negative one. Example: $ 1/x $ has for asymptote $ x=0 $ because $ \lim\limits_{x \rightarrow 0} 1/x = \infty $ Generally, the function is not defined in $ a $, it is necessary to analyze the domain of the function to find potential asymptotes. The horizontal asymptote is the line \(y = q\) and the vertical asymptote is always the \(y\)-axis, the line \(x = 0\). Summing this up, the asymptotes are y = 0 and x = 0. Step 2: Observe any restrictions on the domain of the function. 👉 Learn how to find the vertical/horizontal asymptotes of a function. The mentioned condition is obtained where one or. There are three types of asymptotes: 1. The VA will be x 2 + 4 = 0. The distance between this straight line and the plane curve tends to zero as x tends to the infinity. If the degree of the numerator and. Share a link to this widget: More. Explore math with our beautiful, free online graphing calculator. However, a function may cross a horizontal asymptote. f2 = diff (f1); inflec_pt = solve (f2, 'MaxDegree' ,3); double (inflec_pt) ans = 3×1 complex -5. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. However, a function may cross a horizontal asymptote. There are three kinds of asymptotes, namely horizontal asymptote, vertical asymptote, and oblique asymptote. We make this notion more explicit in the following definition. Given a rational function, we can identify the vertical asymptotes by following these steps: Step 1: Factor the numerator and denominator. For example, the graph shown below has two horizontal asymptotes, y = 2 (as x → -∞), and y = -3 (as x → ∞). The right hand side seems to decrease forever and has no asymptote. An asymptote that is a vertical line is called a vertical asymptote, and an asymptote that is a horizontal line is called a horizontal asymptote. Introduction to Horizontal AsymptoteHorizontal Asymptotes define the right-end and left-end behaviors on the graph of a function. Calculate the area between two curves or between a curve and the x-axis. Unlike vertical asymptotes, which can never be touched or crossed, a horizontal asymptote just shows a general trend in a certain direction. Rational functions: zeros, asymptotes, and undefined points. No matter how far we go into infinity, the line will not actually reach y=0, but will always get closer and closer. For example, he said that the asymptote was y=x^2-2x. The excluded points of the domain follow the vertical asymptotes. At each of the following values of x , select whether h has a zero, a vertical asymptote, or a removable discontinuity. Check out my website,http://www. If x is close to 3 but larger than 3, then the denominator x – 3 is a small positive number and 2x is close to 8. Also gives the user the ability to see the results. The calculator can find horizontal, vertical, and slant asymptotes. h ( x) = x 2 + 4 x − 32 x 2 − 8 x + 16. 3x3 − 81 = 0 3x3 = 81 x3 = 27 x = 3√27 x = 3. Problem 6. No, not all rational expressions have vertical or horizontal asymptotes. Average Rate of Change. Step 4: Find any value that makes the denominator. Horizontal asymptote at y = 9. There are three cases: Case 1: If m>n, then f has no horizontal asymptotes. Calculate horizontal asymptote. x = 1. ⇒ 3x – 2 = 0. y =______. If x is close to 3 but larger than 3, then the denominator x – 3 is a small positive number and 2x is close to 8. Case 2: If the degree of the denominator < degree of the numerator by one, we get a slant asymptote. What are the steps for finding asymptotes of rational functions? Given a rational function (that is, a polynomial fraction) to graph, follow these steps: Set the denominator equal to zero, and solve. 2) If. A horizontal asymptote is an imaginary horizontal line on a graph. At each of the following values of x , select whether h has a zero, a vertical asymptote, or a removable discontinuity. Subject: Algebra/ Calculus Created by: Sabrina Voelker Revised: 3/9/2018 Horizontal and Vertical Asymptotes values of them Graphing Draw Vertical lines to represent your V. Again after substituting in some points, we can sketch the graph of g ( x) below. In the following example, a Rational function consists of asymptotes. Infinity is not a number, so we cannot apply some of the typical math operations to it, such as simplifying ∞/∞ to 1. You could have, if it has a vertical asymptote, too, it could look something like this. Step 2: Observe any restrictions on the domain of the function. The horizontal asymptote of a rational function can be determined by looking at the degrees of the numerator and denominator. f (x)=2−2x−x3 D. This means that the horizontal asymptote is y = 6 3 = 2. We note that the numerator degree is two degrees and the denominator degree is one to find the horizontal asymptote. A horizontal asymptote can often be interpreted as an upper or lower limit for a problem. For the following exercises, construct a rational function that will help solve the problem. Vertical Asymptotes From Graph By seeing the above examples, you might have already got an idea of determining the vertical asymptotes from a graph. These Lines are called Horizontal Asymptotes. It's unbounded. In this example, there is a vertical asymptote at x = 3 and a horizontal asymptote at y = 1. Find the lines that a function approaches but never touches. To find. Finding Horizontal Asymptotes of a Rational Function The method to find the horizontal asymptote changes based on the degrees of the polynomials in the numerator and denominator of the function. The exact value depends on the specific problem. Case 3: If the degree of the denominator = degree of the numerator, there is a horizontal asymptote at y = an bn, where an and bn are respectively the leading coefficients of the numerator and denominator of the rational function. At each of the following values of x , select whether h has a zero, a vertical asymptote, or a removable discontinuity. This isn’t at all a post I was planning to do, but again tonight I had another question on the Tech Powered Math Facebook page about the TI-84+C and asymptotes. Solution First, factor the numerator and denominator. We say [Math Processing Error] if for every [Math Processing Error] there exists [Math Processing Error] such that if [Math Processing Error], then [Math Processing Error]. f(x) = 6x4 − 3x3 + 12x2 − 9 3x4 + 144x − 0. Horizontal asymptoes are found using the limit() function at infinity. This happens most often with a rational function at a value of x that leads to a denominator of zero. If the degree of x in the numerator is. Courses on Khan Academy are always 100% free. Find the intervals of increase and decrease. Their locations show the horizontal shift and compression or expansion implied by the transformation to the original function’s input. Find all horizontal asymptote (s) of the function f(x) = x2 − x x2 − 6x + 5 f ( x) = x 2 − x x 2 − 6 x + 5 and justify the answer by computing all necessary limits. 3: The graph of f(x) = (cosx) / x + 1 crosses its horizontal asymptote y = 1 an infinite number of times. Case 2: If m=n, then y=a/b is the horizontal asymptote of f. A rational function is a fraction where the numerator (top) and denominator (bottom) are both polynomials. In these cases, a curve can be closely approximated by a horizontal or vertical line somewhere in the plane. Horizontal asymptote 2. To find the horizontal asymptote, we follow the procedure above. In these cases, a curve can be closely approximated by a horizontal or vertical line somewhere in the plane. Since the highest power of x is in the denominator, y = 0 is a horizontal asymptote. Example 4. Given the Rational Function, f(x) = 1/(x-2), we can immediately see that when x=2, we have a Vertical Asymptote, ( To know about Vertical Asympyotes, please go to the Article, "How to Find the Difference. To find the asymptotes and end behavior of the function below, examine what happens to x and y as they each increase or decrease. Then, use a calculator to answer the question. Our vertical asymptote calculator can help you easily find the vertical asymptote of any function. Step 2: Identify the vertical asymptotes. 2 x + 1 4 x 2 − 1 3. Using this approach, the asymptote will be found by dividing the function. An asymptote is a line that the graph of a function approaches but never touches. As x gets infinitely large, there is a horizontal asymptote at y=1. For more instructions and videos, check out my iBook: TI-Nspire Step by Step Guide for the IB Teacher and Student: https://books. Explore math with our beautiful, free online graphing calculator. Example: Find the vertical asymptotes of. Horizontal Asymptotes calculator. This algebra video tutorial explains how to graph rational functions using transformations. How to find vertical and horizontal asymptotes of rational function? 1) If. The denominator’s degree Equals 1. To find the horizontal asymptote, we follow the procedure above. video downloader tiktok, porterville ca craigslist

This isn’t at all a post I was planning to do, but again tonight I had another question on the Tech Powered Math Facebook page about the TI-84+C and asymptotes. . How to find vertical and horizontal asymptotes calculator

It explains how to identify the <strong>vertical asymptotes</strong> and horizont. . How to find vertical and horizontal asymptotes calculator mader medx

Us the information from parts (a) - (d) to sketch the graph of each function. Find the horizontal and vertical asymptotes of the function: f (x) =. The area under the curve from 0 to 1 is still not convergent, and the function is not differentiable at x = 0 x = 0 (as the limit of the value is still ±∞, ± ∞, but the value at the point is 1, implying discontinuity). To find vertical asymptotes, look for places in the equation where it becomes undefined, such as when the denominator is equal to zero. 1 Answer. If , then the horizontal asymptote is the line. the limit as x-> infinity) When the degree of the numerator is larger than the degree of the denominator, that means that the value of the numerator is going to increase much more quickly than the value of the demoninator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. There are two types of asymptote: one is horizontal and other is vertical. There are three distinct outcomes when checking for horizontal asymptotes: Case 1: If the degree of the denominator > degree of the numerator, there is a horizontal asymptote at y = 0. Figure 4. Slant asymptotes can be touched and/or crossed. Here is an example to find the vertical asymptotes of a rational function. Step 3: Finally, the asymptotic curve will be displayed in. Courses on Khan Academy are always 100% free. To calculate the asymptote, do the following: Divides the numerator by the denominator and calculates this using the polynomial division. 3x on top, x on the bottom. There are two asymptotes for functions of the form \(y = \dfrac{a}{x} + q\). Solution First, factor the numerator and denominator. We will do this by using the horizontal asymptote test. Step 3: Simplify the expression by canceling common factors in the numerator and denominator. Step 3: If either (or both) of the above limits are real numbers then represent the horizontal asymptote as y = k where k represents the value of the limit. To figure out any potential horizontal asymptotes, we will use limits approaching infinity from the positive and negative direction. A function cannot cross a vertical asymptote because the graph must approach infinity (or \( −∞\)) from at least one direction as \(x\) approaches the vertical asymptote. Embed this widget ». calculator to round these answers to the nearest tenth. He consistently left out the constant term of slant asymptotes. Results: y = x 2 − 6 x x − 4 i s a s y m p t o t i c. For horizontal asymptotes in rational functions, the value of x x in a function is either very large or very small; this means that the terms with largest exponent in the numerator and denominator are the ones that matter. The graph approaches, it approaches the x axis from either above or below. There are two asymptotes for functions of the form \(y = \dfrac{a}{x} + q\). Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. To find horizontal asymptotes, we may write the function in the form of "y=". Step 2: Click the blue arrow to submit and see the result!. Horizontal asymptote 2. Step 4. degree of numerator > degree of denominator. Here, the asymptotes are the lines 𝑥 = 0 and 𝑦 = 0. Move the sliders in boxes 2 and 3 to match where the vertical and horizontal asymptotes are for each graph. In the example, set the factors (x - 2) and (x - 1) equal to 0 to get the values x = 2 and x = 1. What are the steps for finding asymptotes of rational functions? Given a rational function (that is, a polynomial fraction) to graph, follow these steps: Set the denominator equal to zero, and solve. We can solve for the vertical asymptotes of . Find the vertical and horizontal asymptotes of the function f x = 5 x − 1. The function is, for all intents and purposes, the same. Vertical Asymptote Calculator: A vertical asymptote calculator is a tool that determines the vertical asymptotes of a given function. degree of numerator > degree of denominator. Remember that factors are terms that multiply, and to get a final value of 0, setting any one factor equal to 0 will solve the problem. Since as from the left and as from the right, then is a vertical asymptote. Show Vertical Asymptote(s). Find and. Click here to learn how to discover the horizontal asymptote using tricks and shortcuts. Step 6. (b) Find the x-value where intersects the horizontal asymptote. Find the. Degree of numerator is greater than degree of denominator by one: no horizontal asymptote; slant asymptote. Recall that lim x → a f ( x) = L means f ( x) becomes arbitrarily close to L as long as x is sufficiently close to a. A graph of each is also supplied. Usually, the next step would be to take the square root of both sides. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. Right–Asymptote detection turned on. Find all horizontal asymptote (s) of the function f(x) = x2 − x x2 − 6x + 5 f ( x) = x 2 − x x 2 − 6 x + 5 and justify the answer by computing all necessary limits. Solutions: (a) First factor and cancel. y =0 y = 0. Vertical asymptotes occur at points where the function is not defined. This Article will show How to find these Horizontal lines, by looking at some Examples. A function cannot cross a vertical asymptote because the graph must approach infinity (or \( −∞\)) from at least one direction as \(x\) approaches the vertical asymptote. While vertical asymptotes describe the behavior of a graph as the output gets very large or very small, horizontal asymptotes help describe the behavior of a graph as the input gets very large or very small. For example, he said that the asymptote was y=x^2-2x. The value must be a real number. So you need to check any answers you find against that. This video is for students who. To find the horizontal asymptote of a rational function, compare degrees between the numerator and denominator polynomials (recall that degree is the highest exponent or power on a standard. Embed this widget ». Use a calculator to approximate the time when the concentration is highest. A vertical asymptote occurs at x = c when the following are all true. Notice how the degree of both the numerator and the denominator is 4. The domain is "all -values" or "all real numbers" or "everywhere" (these all being common ways of saying the same thing), while the vertical asymptotes are "none". Solution: Method 1: Use the definition of Vertical. (Functions written as fractions where the numerator and denominator are both. An asymptote is a line that the graph of a function approaches but never touches. • 3 cases of horizontal asymptotes in a nutshell. Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have. Find the horizontal asymptote, if it exists, using the fact above. English as 2nd Language. Putting x = 3 in the function definition makes the denominator equal zero, which tells you that you have an. Usually, the next step would be to take the square root of both sides. This video is for students who. Figure Page4. Notice how the degree of both the numerator and the denominator is 4. An oblique asymptote exists when the numerator of the function is exactly one degree greater than the denominator. For vertical asymptotes, these occur when there is an x x in the denominator. Find more Mathematics widgets in Wolfram|Alpha. The denominator’s degree Equals 1. Sketch the graph, and find the horizontal and vertical asymptotes of the reciprocal squared function that has been shifted right 3 units and down 4 units. Solve for x in the denominator. The algebraic limit laws and squeeze theorem we introduced in Introduction to Limits also apply to limits at infinity. In this wiki, we will see how to determine horizontal and vertical asymptotes in the specific case of rational functions. x = − 2. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright. The denominator’s degree Equals 1. Our value of our function is quickly approaching negative infinity. Their locations show the horizontal shift and compression or expansion implied by the transformation to the original function’s input. Similar conditions hold for the case x → −∞ x → − ∞. Most calculators will not identify vertical asymptotes and some will incorrectly draw a steep line as part of a function where the asymptote actually exists. ASYMPTOTES 3 Example 2. But here are some tricks to find the horizontal and vertical asymptotes of a rational function. \ (\begin {array} {l}\lim_ {x\rightarrow +\infty }f (x) = b\end {array} \) The above limit is same for x → - ∞, Example:. Find the vertical asymptote (s) of each function. State the {eq}x {/eq}- and {eq}y {/eq}- intercepts, vertical and horizontal asymptotes, domain, and range of the function graphed below. Use a graphing calculator to graph the function. Since the factor x – 5 canceled, it does not contribute to the final answer. An open box with a square base is to have a volume of 108. The right hand side seems to decrease forever and has no asymptote. Estimate the end behavior of a function as \(x\) increases or decreases without bound. ⎧⎨⎩k(x)= 5+2x2 2−x−x2 = 5+2x2 (2+x)(1−x) { k ( x) = 5 + 2 x 2 2 − x − x 2 = 5 + 2 x 2 ( 2 + x) ( 1 − x) To find the vertical asymptotes, we determine where this function will be undefined by setting the denominator equal to zero: {(2+x)(1−x) =0 x=−2,1 { ( 2 + x) ( 1 − x) = 0 x = − 2 1. . nifty ero