Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 11 - Rational Expressions and Functions - 11-2 Multiplying and Dividing Rational Expressions - Practice and Problem-Solving Exercises - Page 676: 72

Answer

Answer A

Work Step by Step

The formula for the axis of symmetry and the x-coordinate of the vertex is: $x=\frac{-b}{2a}=\frac{-3}{2.2}=\frac{-3}{4}=-0.75$ To find the y-coordinate of the vertex, substitute the value for x into the equation and solve for y: $y=2(-0.75)^2+3(-0.75)-1$ $y=-2.125$ The correct answer is A.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After 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.