Answer
$16~ft$
Work Step by Step
Find the $y$ of the vertex, that is:
$f(-\frac{b}{2a})=f(-\frac{\frac{24}{9}}{2(-\frac{4}{9})})=f(3)$
$f(3)=-\frac{4}{9}(3)^2+\frac{24}{9}(3)+12=-4+8+12=16$
Algebra and Trigonometry 10th Edition
by Larson, Ron
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: 67
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