Answer
Vertex = (-30, 91)
X min = -80
X max = 20
Y min = 0
Y max = 130
Work Step by Step
$y=0.01x^{2}+0.6x+100$
$a=0.01, b=0.6$
$\frac{-0.6}{2(0.01)}= \frac{-0.6}{0.02}= -30$
$y(-30)=0.01(-30)^2+0.6(-30)+100=0.01(900)-18+100=9+82=91$
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: 85
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