Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Section 1.1 - Graphs and Graphing Utilities - Exercise Set - Page 160: 75

Answer

Quadrant I and Quadrant III

Work Step by Step

The product $xy$ will be positive when $x$ and $y$ have the same sign. Points in Quadrant I and Quadrant III have coordinates with the same signs so the product $xy$ will be positive.
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.