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: 9

Answer

The answer is B.

Work Step by Step

So, it is asking for the domain of the following relation: (-4,2), (-1,3), (1,4), (1,-3), (2,1). The domain is the x-values of all the points. So, the x-values are -4, -1, 1, 1, 2. The 1 is repeated, so you only write it once, making the answer B.
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