Calculus 8th Edition

Published by Cengage
ISBN 10: 1285740629
ISBN 13: 978-1-28574-062-1

Chapter 1 - Functions and Limits - Review - Exercises - Page 96: 2


Left : not a graph of a function Right: a graph of a function, domain [-3, 3], range: [-2, 3]

Work Step by Step

The left curve fails the Vertical Line Test (the line $x=0$ intersects it three times). It is not the graph of a function of x. The curve on the right passes the Vertical Line Test, so it is the graph of a function of x. The domain is [-3, 3] and the range is [-2, 3]
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