College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter 4 - Section 4.1 - Inverse Functions - 4.1 Exercises - Page 394: 21

Answer

$f(x)=3$ is not one to one.

Work Step by Step

The function $f(x)=3$ is not one-to-one because it is a horizontal line. The function will fail the horizontal line test because a line drawn at $y=3$ will hit all the points of $f(x)=3$.
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