Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 4 - Inverse, Exponential, and Logarithmic Functions - Test - Page 495: 5

Answer

See graph and explanations.

Work Step by Step

Step 1. Use test points $x=-3,-2,-1,0,1,2,3,...$ to graph $f(x)=(\frac{1}{2})^x$ as shown in the figure (red curve). Step 2. Use test points $x=\frac{1}{4},\frac{1}{2},1,2,4...$ to graph $g(x)=log_{1/2}(x)$ as shown in the figure (blue curve). Step 3. We can see that the two functions are symmetric with respect to $y=x$ and inverses to each other.
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