Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 9 - Section 9.1 - Inverse Functions - 9.1 Exercises - Page 587: 2

Answer

A. f(x) = x

Work Step by Step

Only the equation in the response A. f(x) = x is a one-to-one function, because it is the only equation whose graph passes the horizontal line test. The responses in B, C, and D all fail the horizontal line test (see attached photo).
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