Answer
-$\frac{2}{5}$
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.
$\frac{-b}{2a}$=$\frac{-(-4)}{2(-5)}$=$\frac{4}{-10}$=-$\frac{2}{5}$
Algebra 1
by Hall, Prentice
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
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
