Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Section 1.10 - Modeling with Functions - Exercise Set - Page 292: 11


a. $16500-50x$, b. $16500x-50x^2$

Work Step by Step

a. We can express the relation between the number of passengers and the ticket price as $N(x)=9000+50(150-x)=16500-50x$, so that $N(150)=9000$ and $N$ increases by 50 for every dollar decrease in price. b. The revenue can be expressed as $R=Nx=16500x-50x^2$
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