Answer
Vertex = (-4, 520)
X min = -10
X max = 2
Y min = 0
Y max = 800
Work Step by Step
$y=5x^{2}+40x+600$
$a=5, b=40$
$\frac{-40}{2(5)}= \frac{-40}{10}= -4$
$y(-4)=5(-4)^2 +40(-4)+600=5(16)-160+600=80+440=520$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 3 - Polynomial and Rational Functions - Exercise Set 3.1 - Page 345: 84
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