Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 2 Linear Equations and Functions - 2.1 Represent Relations and Functions - 2.1 Exercises - Skill Practice - Page 77: 13

Answer

Function

Work Step by Step

A relation is a function if every input has exactly one output. Note, multiple inputs can have the same output, but no input can have multiple outputs. Thus, we see that the given relation is a function. After all, while all inputs have the same output, no input has two outputs.
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