Answer
$1$
Work Step by Step
Average rate of change is: $ \dfrac{f(x_2)-f(x_1)}{x_2-x_1}$
So, $ \dfrac{f(x_2)-f(x_1)}{x_2-x_1}= \dfrac{[-(2)^2+(4)(2)-3]-[-(1)^2+(4)(1)-3]}{2-1}$
or, $=\dfrac{1-0}{1}$
or, $=1$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 2 - P.S. Problem Solving - Page 239: 8a
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