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 74: 19

Answer

$$ y=\frac{-2x^{2}-3}{x^{2}+1} $$ Has no vertical asymptotic line. The line $y=-2 $ is a horizontal asymptotic. The y-intercept is -3 This is graph $E$.

Work Step by Step

$$ y=\frac{-2x^{2}-3}{x^{2}+1} $$ has no vertical asymptotic line. To find a horizontal asymptotic, let $x$ get larger and larger, so that $$ y=\lim _{x \rightarrow \infty} \frac{-2x^{2}-3}{x^{2}+1} =-2 $$ This means that the line $y=-2 $ is a horizontal asymptotic. When $x=0 $ the y-intercept is -3 This is graph $E$.
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