Calculus: Early Transcendentals (2nd Edition)

Published by Pearson
ISBN 10: 0321947347
ISBN 13: 978-0-32194-734-5

Chapter 2 - Limits - 2.1 The Idea of Limits - 2.1 Exercises - Page 59: 8



Work Step by Step

By definition, the average velocity is the change in position over the time interval, divided by the length of that interval: $$v_{ave}=\frac{s(4)-s(1)}{4-1}=\frac{144-84}{3}=20.$$
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