Finite Math and Applied Calculus (6th Edition)

Published by Brooks Cole
ISBN 10: 1133607705
ISBN 13: 978-1-13360-770-0

Chapter 1 - Section 1.2 - Functions and Models - Exercises - Page 75: 47b

Answer

Purchase of $70$ shirts, for a price of ${{\$}} 20.80$ per shirt.

Work Step by Step

Using the same graphing window in part (a), we cancel the graphs for the cases other than case C. We estimate that the graph is at its lowest point at $(70,20.8)$, representing the purchase of $70$ shirts, for a price of ${{\$}} 20.80$ per shirt.
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