Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 9 - Quadratic Functions and Equations - 9-1 Quadratic Graphs and Their Properties - Mixed Review - Page 540: 61



Work Step by Step

If a=-5, and b=-4, in order to evaluate the expression $\frac{-b}{2a}$ all we must do is simply plug in the givens into the expression. $\frac{-b}{2a}$=$\frac{-(-4)}{2(-5)}$=$\frac{4}{-10}$=-$\frac{2}{5}$
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