Answer
$f(1.25) = 4.635$
$f(4) = 53.333$
Work Step by Step
$f(1.25) = \frac{7}{2}\times1.25^{2} - \frac{2}{3}\times1.25 \approx 5.46875 - 0.83333 = 4.635 $
$f(4) = \frac{7}{2}\times4^{2} - \frac{2}{3}\times4 \approx 56 - 2.6667 = 53.333 $
Calculus Concepts: An Informal Approach to the Mathematics of Change 5th Edition
by LaTorre, Donald R.; Kenelly, John W.; Reed, Iris B.; Carpenter, Laurel R.; Harris, Cynthia R.
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: 20
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