Answer
It is not a graph of function of x
Work Step by Step
The curve is not a graph of a function of x, because there are two different y's for $x=-1$
Calculus 8th Edition
by Stewart, James
Published by
Cengage
ISBN 10:
1285740629
ISBN 13:
978-1-28574-062-1
Chapter 1 - Functions and Limits - 1.1 Four Ways to Represent a Function - 1.1 Exercises - Page 19: 7
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