College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 2, Functions - Section 2.4 - Average Rate of Change of a Function - 2.4 Exercises - Page 224: 9

Answer

(a) $-4$ (b) $-\frac{4}{5}$

Work Step by Step

(a) We calculate the net change between the two points given: Net change = $f(5)-f(0)=2-6=-4$ (b) We calculate the average rate of change between $(0,6)$ and $(5,2)$: Average rate of change = $\frac{2-6}{5-0}=-\frac{4}{5}$
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