Answer
$t=-\frac{b}{2a}$
Work Step by Step
This situation is represented by the vertex of the parabola:
Vertex: $(-\frac{b}{2a},f(-\frac{b}{2a}))$
So, $t=-\frac{b}{2a}$ and $P(t)=f(-\frac{b}{2a}))$
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 250: 80b
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