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: 69



Work Step by Step

Find the $y$ of the vertex, that is: $f(-\frac{b}{2a})=f(-\frac{\frac{9}{5}}{2(-\frac{16}{2025})})=f(113.90625)$ $f(113.90625)=-\frac{16}{2025}(113.90625)^2+\frac{9}{5}(113.90625)+1.5\approx104.02$
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