Answer
$f(x) = 0$ for $x=1, x=-4$
Work Step by Step
The parabola is zero when $x= 1$ and when $x= -4$. Hence$$f(x) = 0\text{ for }x=1,x=-4.$$
Intermediate Algebra: Connecting Concepts through Application
by Clark, Mark; Anfinson, Cynthia
Published by
Brooks Cole
ISBN 10:
0-53449-636-9
ISBN 13:
978-0-53449-636-4
Chapter 1-8 - Cumulative Review - Page 680: 88
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