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: 10


a. $26000-400x$ b. $26000x-400x^2$

Work Step by Step

a. We can express the relation between the number of spectators and the ticket price as $N(x)=20000-400(x-15)=26000-400x$ so that $N(15)=20000$ and $N$ decreases by $400$ for every dollar increase in price. b. The revenue can be expressed as $R=Nx=26000x-400x^2$
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