Functions Modeling Change: A Preparation for Calculus, 5th Edition

by Connally, Eric; Hughes-Hallett, Deborah; Gleason, Andrew M.; Cheifetz, Phil C.

Published by Wiley

ISBN 10: 1118583191

ISBN 13: 978-1-11858-319-7

Chapter 1 - Linear Functions and Change - Review Exercises and Problems for Chapter One - Page 52: 1

Answer

(a) No (b) Yes

Work Step by Step

(a) This is not a function, for it fails the vertical line test. (b) Since the bottom half is cut off, it will no longer fail the vertical line test, so it is a function.

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