Answer
$11$
Work Step by Step
Substitute in $x=-1$: $f(-1)=(-1)^2-3(-1)+7=1+3+7=11$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 3 - Section 3.1 - Systems of Linear Equations in Two Variables - Exercise Set - Page 194: 122
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