Trigonometry 7th Edition

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: 17


this graph is not a function

Work Step by Step

on this graph you can draw a vertical line and in some places it will intersect the graph on two points, meaning that at least two coordinate pairs have the same x values, which means that it cannot be a function
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