Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 3 - Review Exercises - Page 300: 21a



Work Step by Step

$x+2y-8=0$ $2y=8-x$ $y=4-\frac{x}{2}$ $A=xy$ $A=x(4-\frac{x}{2})=4x-\frac{x^2}{2}$ $A=-\frac{x^2}{2}+4x$
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