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 76: 2


See explanation,

Work Step by Step

The domain is the set of x values that are present so it is simply a list of $x$-coordinates. The range, likewise, is the set of y-coordinates. If values are included multiple times, one only needs to write them once.
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