College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter 4 - Section 4.2 - Exponential Functions - 4.2 Exercises - Page 409: 27

Answer

See the picture below.
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Work Step by Step

By calculating a few pairs, plotting each ordered pair, and connecting the dots on the graph with a smooth curve, we can graph the function. A few pairs: $f(-2)=2^{\mid{-2}\mid}=2^2=4$ $f(−1)=2^{\mid{-1}\mid}=2^1=2$ $f(0)=2^0=1$ $f(1)=2^{\mid{1}\mid}=2^1=2$ $f(2)=2^{\mid{2}\mid}=2^2=4$ As we can see, this function is symmetric with respect to the y-axis.
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