Answer
One-to-one.
Work Step by Step
According to the Horizontal Line Test, a function is one-to-one if and only if every horizontal line intersects the graph at at most one point.
Here, the test passes, so the function is one-to-one.
University Calculus: Early Transcendentals (3rd Edition)
by Hass, Joel R.; Weir, Maurice D.; Thomas Jr., George B.
Published by
Pearson
ISBN 10:
0321999584
ISBN 13:
978-0-32199-958-0
Chapter 1 - Section 1.6 - Inverse Functions and Logarithms - Exercises - Page 48: 9
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