Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning
ISBN 10: 1285741552
ISBN 13: 978-1-28574-155-0

Chapter 2 - Section 2.7 - Derivatives and Rates of Change - 2.7 Exercises - Page 149: 26

Answer

The domain is $(-2,2)$ $f'(0) = -2$ $\lim\limits_{x \to 2^-}f(x) = \infty$ $f$ is discontinuous at $~~x = -1~~$ and $~~x = 1~~$ $f$ is odd

Work Step by Step

The domain is $(-2,2)$ $f'(0) = -2$ The slope at $~~x=0~~$ is $~~-2$ $\lim\limits_{x \to 2^-}f(x) = \infty$ As $x$ approaches $2$ from the left, the value of the function becomes larger magnitude positive numbers. $f$ is discontinuous at $~~x = -1~~$ and $~~x = 1~~$ $f$ is odd Then $f(-x) = -f(x)$ for all $x$ in $(-2,2)$ The graph is symmetric about the origin.
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