Algebra and Trigonometry 10th Edition

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

Chapter 3 - 3.1 - Quadratic Functions and Models - 3.1 Exercises - Page 250: 73a



Work Step by Step

Total of fencing: $4x+3y=200$ $3y=200-4x$ $y=\frac{200-4x}{3}$ $A=2xy=2x(\frac{200-4x}{3})=\frac{400x-8x^2}{3}=-\frac{8}{3}x^2+\frac{400}{3}x$
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