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 - Page 272: 92

Answer

The statement is false. The correct statement is, “The function $f\left( x \right)=5$ is a many-to-one function.”

Work Step by Step

Since, $f\left( x \right)=5$ So, $y=f\left( x \right)$ This implies: $y=5$ So, for all the inputs of x, the output y will be 5. Therefore, for multiple inputs, there is a single output. Hence it is not a one-to-one function because for each input there is no unique output. It is a many-to-one function. Thus, the statement is false. The correct statement is, “The function $f\left( x \right)=5$ is a many-to-one function.”
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