College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 1, Equations and Graphs - Section 1.1 - The Coordinate Plane - 1.1 Exercises - Page 92: 15


The regions represented by the given set are Quadrants II and IV.

Work Step by Step

The product of the x and y coordinates of each point is less than zero or negative. This product of $x$ and $y$ will be negative only when $x$ and $y$ have opposite signs. Note that the x and y coordinates have opposite signs in Quadrant II and Quadrant IV. Thus, the regions given by the set are Quadrant II and Quadrant IV.
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.