Answer
The graphs are identical because the functions are equivalent to each other.
Work Step by Step
The graphs are identical because the functions are equivalent since:
$a^{-x}=\dfrac{1}{a^x}=\left(\dfrac{1}{a}\right)^x$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 5 - Exponential and Logarithmic Functions - 5.3 Exponential Functions - 5.3 Assess Your Understanding - Page 285: 135
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