Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Section 1.8 - Inverse Functions - Exercise Set: 83

Answer

The given function has no inverse function. (refer to the step-by-step part for the explanation and graph)

Work Step by Step

Use a graphing utility to graph the given function. (refer to the attached image below for the graph. A number of horizontal lines (such as $y=-1$) pass through the graph at two points. This means that the graph fails the horizontal line test, therefore the given function has no inverse function.
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