Answer
Choice A
Work Step by Step
In $y=b^x$, the variable $x$ is called an exponent. Since the given equation is equivalent to $x=\log_b y$, then $\log_by$ or the logarithm of a number, base $b$, is an exponent. Hence, Choice A.
Intermediate Algebra (12th Edition)
by Lial, Margaret L.; Hornsby, John; McGinnis, Terry
Published by
Pearson
ISBN 10:
0321969359
ISBN 13:
978-0-32196-935-4
Chapter 9 - Summary - Page 633: 6
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