Answer
(a) 3
(b) 3
Work Step by Step
We are given: $f(x)=3x-2$, $x=2,x=3$
(a) We calculate the net change:
$f(3)-f(2)=[3*3-2]-[3*2-2]=7-4=3$
(b) We calculate the average rate of change:
$\displaystyle \frac{f(3)-f(2)}{3-2}=\frac{3}{1}=3$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
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: 11
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