Calculus with Applications (10th Edition)

Published by Pearson
ISBN 10: 0321749006
ISBN 13: 978-0-32174-900-0

Chapter 2 - Nonlinear Functions - 2.3 Polynomial and Rational Functions - 2.3 Exercises - Page 75: 31

Answer

$$ y=\frac{2x}{x-3} $$ We find that: Asymptotic: $y=2$ and $x=3$ $x$-intercept: 0 $y$ -intercept: 0

Work Step by Step

$$ y=\frac{2x}{x-3} $$ The function is undefined for $x=3$, so the line $x=3$ is a vertical asymptotic.. To find a horizontal asymptotic, let $x$ get larger and larger, so that $$ y=\lim _{x \rightarrow \infty} \frac{2x}{x-3}=2 $$ This means that the line $y=2 $ is a horizontal asymptotic. When $x=0 $ the $y$-intercept is 0 When $y=0 $ the $x$-intercept is 0 So, Asymptotic: $y=2$ and $x=3$ $x$-intercept: 0 $y$ -intercept: 0
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