College Algebra 7th Edition

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: 10


$f$ is not one-to-one

Work Step by Step

The function $f$ is not one-to-one because it fails the horizontal line test. A horizontal line would pass the graph for more than one value, indicating that the function has the same $y$ value for multiple $x$ values.
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