Answer
not one-to-one
Work Step by Step
We find many horizontal lines that intersect the graph more than once.
One line is enough to fail the test. so we take the x-axis ($y=0)$.
Horizontal Line Test: FAIL.
The function is not one-to-one.
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 - 4.1 Inverse Functions - 4.1 Exercises - Page 416: 13
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