Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 11 - Additional Topics - 11.7 - Relations and Functions - Problem Set 11.7 - Page 509: 46


The answer is below.

Work Step by Step

My velocity since I started running may be given by $-t^2 +10$. However, there is a domain restriction, for time cannot be negative. Another example is the function $ m = w^2 + 15 w +10$, where m is the amount of the material used and w is the width of the box. This domain is also restricted, for width can never be negative.
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