Answer
-7
Work Step by Step
The student forgot to include the negative sign when stating the value of c. Thus, the value should be negative 7, not 7.
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 4 - 4.1 Graph Quadratic Functions in Standard Form - 4.1 Exercises - Skill Practice - Page 240: 20
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