Answer
$A=-\frac{x^2}{2}+4x$
Work Step by Step
$x+2y-8=0$
$2y=8-x$
$y=4-\frac{x}{2}$
$A=xy$
$A=x(4-\frac{x}{2})=4x-\frac{x^2}{2}$
$A=-\frac{x^2}{2}+4x$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 3 - Review Exercises - Page 300: 21a
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