Algebra 2 (1st Edition)

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

Chapter 4 Quadratic Functions and Factoring - Standardized Test Practice - Gridded Answer - Page 327: 16

Answer

The minimum $y$ value: $3$

Work Step by Step

Use the axis of symmetry formula: $x=-\frac{b}{2a}=-\frac{24}{2.4}=-3$ Substitute for x in $f(x)$ $f(-3)=4(-3)^2+24(-3)+39=3$
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