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 249: 70



Work Step by Step

Given: $P=230+20x-0.5x^2$ -b/2a = -(20)/2(-0.5)= 20 Finding the vertex or maximum: $P=230+20(20)-0.5(20)^2$ =430 Plug 20 back into the equation to check the final answer.
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