Answer
f is not one to one
Work Step by Step
Using the horizontal line test, the line passes through multiple points when y=1.
Because it fails the horizontal line test, f is not one to one
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 2, Functions - Section 2.8 - One-to-One Functions and their Inverses - 2.8 Exercises - Page 262: 7
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