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 1 - Ingredients of Change: Functions and Limits - 1.1 Activities - Page 10: 16

Answer

$R(2.1)=15.430$ $R(-1)=33.333$

Work Step by Step

$R(2.1)=26(.78^{2.1})\approx 26(.593) \approx 15.430$ $R(-1)=26(.78^{-1})=\frac{100}{3}\approx 33.333$
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