Answer
(a) $ 3$
(b) $ \frac{1}{3}$
(c) $9$
(d) $1$
Work Step by Step
Given $f(x)=a^x$ and $f(3)=27$, we have $a^3=27$ which gives $a=3$.
(a) $f(1)=3^1=3$
(b) $f(-1)=3^{-1}=\frac{1}{3}$
(c) $f(2)=3^2=9$
(d) $f(0)=3^0=1$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 4 - Inverse, Exponential, and Logarithmic Functions - 4.2 Exponential Functions - 4.2 Exercises - Page 434: 116
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