Answer
(a) $16$, $(4,16)$.
(b) $-4$, $(-4,\frac{1}{16})$.
Work Step by Step
(a) Given $f(x)=2^x$, we have $f(4)=2^4=16$ which gives point $(4,16)$.
(b) $\frac{1}{16}=2^x$, thus $x=-4$ which gives point $(-4,\frac{1}{16})$.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 4 - Exponential and Logarithmic Functions - Section 4.3 Exponential Functions - 4.3 Assess Your Understanding - Page 307: 91
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