Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 4 Quadratic Functions and Factoring - 4.10 Write Quadratic Functions and Models - 4.10 Exercises - Skill Practice - Page 313: 26


See below.

Work Step by Step

The error is in the first step. If the x-intercepts of a graph are $a,b$ then the function has the form $f(x)=k(x-a)(x-b)$. Hence here $y=a(x-4)(x+3)$ in the first step.
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