Answer
a) -2
b) -1/2
Work Step by Step
a) From the graph: f(1)=4, f(5)=2
f(5)-f(1)=2-4=-2
b) $\frac{2-4}{5-1}=-2/4=1/2$
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 2 - Section 2.4 - Average Rate of Change of a Function - 2.4 Exercises - Page 188: 8
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