How to find asymptotes of a curve pdf

To find horizontal asymptote we need the x coordinate to go to , which happens when tapproaches -2 from the left or 2 from the right. We now have: 2 22 lim limln ln4 tt yt You can check that the same happens tapproaching -2 from the left, so that y ln4 is a horizontal asymptote. This is the graph of the curve, which confirms our findings. 2) Find the vertical asymptotes and graph them as a dotted line. 3) Find any horizontal or slant asymptotes and graph it as a dotted line. 4) Find the y-intercept (if there is one) by setting x=0 (in both numerator and denominator) and solving. Plot the y-intercept. 5) Find the x-intercepts by setting the numerator equal to zero and solving for x. Sketching the curve With the above information, we should draw the asymptotes, plot the xand y intercepts, local maxima, local minima and points of in ection. We draw the curve through these points, increasing, decreasing, concave up, concave down and approaching the asymptotes as appropriate. Example Sketch the graph of the function: f(x) = x2 An asymptote is a horizontal/vertical/slant line to which the curve is very close to but the curve doesn't touch the asymptote. What are the Rules to Find Asymptotes? Here are the rules to find asymptotes of a function y = f (x). To find the horizontal asymptotes apply the limit x→∞ or x→ -∞. Sec 4.3 : Curve sketching. The graph has the vertical asymptotes x= -2, and x=2 and only 1 horizontal asymptote y=0 How to find the vertical asymptotes of the graph of a rational function like xx +−11 For a rational function Q (x ), If Q(a) = 0, and . Then x = a , is a vertical asymptote to P (x ) P (a)=/0 the graph of the function. In most cases, the asymptote (s) of a curve can be found by taking the limit of a value where the function is not defined. Typical examples would be infty ∞ and -infty, −∞, or the point where the denominator of a rational function equals zero. Asymptotes are generally straight lines, unless mentioned otherwise. To sketch the graph of f(x), you will generally want to follow as many of the following steps as possible. (1) Find the domain, zeros, and intervals of positivity and negativity. (2) Find any horizontal asymptotes. (3) Find any vertical asymptotes. (4) Find any critical points. (5) Find intervals of increase and decrease. Asymptotes: An asymptote to a curve is a straight line that gets arbitrarily close to the curve far away from the origin. Vertical Asymptotes: Recall that a vertical straight line is given by x= c, for example x= −4 or x= 7. Example: Find all the vertical asymptotes of the curve y= x x−2 Solution: Look for division by 0: x=2. The asymptote (s) of a curve can be obtained by taking the limit of a value where the function does not get a definition or is not defined. An example would be infty∞ and -infty −∞ or the point where the denominator of a rational function is zero. Now you know that the curves walk alongside the asymptotes but never overtake them. Asymptotes in Polar curve.Asymptotes in Polar curve Problems.Asymptotic in Polar curve examples.Asymptotes in Polar curve - differential calculus.HOW to find the graph will never cross any vertical asymptotes, there will be separate pieces between and on the sides of all the vertical asymptotes. Finding Vertical Asymptotes 1.Factor the denominator. 2.Set each factor equal to zero and solve. The locations of the vertical asymptotes are nothing more than the x-v