Answer
$C.$
Work Step by Step
Starting with the graph of figure 21, taking a=3, $f(x)=3^{x}$,
and then
reflecting across the x-axis $\qquad$... $y=-f(x)$
... we obtain this graph.
We look for $ y=-f(x)=-3^{x}\qquad$... choice $C.$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 6 - Section 6.3 - Exponential Functions - 6.3 Assess Your Understanding - Page 435: 40
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