College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 4 - Summary, Review, and Test - Review Exercises - Page 510: 2

Answer

h(x)

Work Step by Step

The graph of $f(x)=4^{x}$ passes through (0,1) and (1,4) ($4^{0}=1$ and $4^{1}=4).$ This graph is not $f(x)=4^{x}$. This graph passes through (0,$-1$) and ($-1,-4$), which are obtained from (0,1) and (1,4) by: reflecting about the y-axis $\qquad f(x)\rightarrow f(-x)$, and then reflecting about the x axis,$\qquad f(-x)\rightarrow-f(-x).$ So this function is $-f(-x)=-4^{-x}=h(x)$
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