Trigonometry (10th Edition)

by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie

Published by Pearson

ISBN 10: 0321671775

ISBN 13: 978-0-32167-177-6

Appendix C - Functions - Page 435: 20

Answer

The relation defines a function. domain: $[-2, 2]$ range: $[0, 4]$

Work Step by Step

Each value of $x$ in the domain has exactly one corresponding value of $y$. Therefore, the relation defines a function. domain: $[-2, 2]$ range: $[0, 4]$

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