Answer
a function
Work Step by Step
Domain = {-1, 1, 2}
Range = {3, 3, -5}
Since there are no two different ordered pairs have the same first coordinate, it is a function.
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Appendix A - Section A.1 - Introduction to Functions - A.1 Problem Set - Page 486: 11
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