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 2 - Functions - 2.2 Domain and Range - Exercises and Problems for Section 2.2 - Skill Refresher - Page 82: S4

Answer

$x>15$

Work Step by Step

We look for any values that make the number inside the square root negative. Thus, the function is undefined whenever x is greater than 15.

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