Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.8 - Inequalities - 1.8 Exercises: 27

Answer

$(-\infty, -1]$ Refer to the attached image below for the graph.
1497505087

Work Step by Step

The given inequality can be written as $\\4-3x \le -1(1+8x)$ Distribute $-1$ to have: $\\4-3x \le -1 -8x$ Add $8x$ to both sides to have: $\\4-3x+8x \le -1-8x+8x \\4+5x \le -1$ Subtract 4 to both sides to have: $\\4+5x-4 \le -1 - 4 \\5x \le -5$ Divide 5 to both sides to have: $x \le -\frac{5}{5} \\x \le -1$
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.