Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 3 - Section 3.4 - Slope and Rate of Change - Exercise Set: 86

Answer

Slope between $(1,1)$ and $(-3,0)$ $\frac{0-1}{-3-1}=\frac{-1}{-4}=\frac{1}{4}$ Slope between $(-4,4)$ and $(-3,0)$ $\frac{0-4}{-3-(-4)}=\frac{-4}{1}=-4$ A right angled triangle has a right angle, meaning two sides are perpendicular to each other. One slope must be the negative reciprocal of the other. $-4$ is the negative reciprocal of $\frac{1}{4}$. Therefore, this forms a right angled triangle.

Work Step by Step

See "answer".
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.