Calculus, 10th Edition (Anton)

Published by Wiley
ISBN 10: 0-47064-772-8
ISBN 13: 978-0-47064-772-1

Chapter 0 - Before Calculus - 0.1 Functions - Exercises Set 0.1 - Page 13: 18


This graph does not define y as a function of x.

Work Step by Step

When $x = 0$, $y = 5$ and $y = -5$. As there is a value of x for which there is more than one corresponding value for y, this graph does not define a function
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