Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 1 - Functions and Their Graphs - Section 1.1 Functions - 1.1 Assess Your Understanding - Page 53: 16

Answer

This relation doesn't represent a function.

Work Step by Step

A function can't have a single first element paired with more than one second element. In this example, "Bob" is a first element, and it is paired with "Beth" and "Diane", therefore, this relation can't represent a function.
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