Calculus Concepts: An Informal Approach to the Mathematics of Change 5th Edition

Published by Brooks Cole
ISBN 10: 1-43904-957-2
ISBN 13: 978-1-43904-957-0

Chapter 4 - Analyzing Change: Applications of Derivatives - 4.7 Activities - Page 309: 1



Work Step by Step

$\frac{d}{dt}[f]=\frac{d}{dt}(3x)=\frac{d}{dx}(3x)\times\frac{dx}{dt}= 3\times\frac{dx}{dt}$ A related-rates equation is $\frac{df}{dt}= 3\frac{dx}{dt}$
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