Algebra 2 (1st Edition)

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

Chapter 2 Linear Equations and Functions - 2.8 Graph Linear Inequalities in Two Variables - 2.8 Exercises - Quiz for Lessons 2.7-2.8 - Page 138: 4



Work Step by Step

The absolute value functions have the form $y=a|x-b|+c$ where $(b,c)$ is the vertex of the function. Hence here because the vertex is at $(0,-2)$, $y=a|x|-2$. Since $(-1,-4)$ is on the function, plugging in the values we get: $-4=a|-1|-2\\-4=a-2\\\\-2=a$. Thus $y=-2|x|-2$.
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.