Answer
not a function
Work Step by Step
The relation is not a function because there is an input value to which there belongs more than $1$ output value. ($4$ and $5$ are both output values of $0$).
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 2 Linear Equations and Functions - 2.3 Graph Equations of Lines - 2.3 Exercises - Quiz for Lessons 2.1-2.3 - Page 96: 3
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