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 - Page 89: 93

Answer

$|x-7|\ge 5$

Work Step by Step

RECALL: The expression $|x-a|$ represents the distance of a real number $x$ from $a$. Thus, the expression $|x-7|$ represents the distance of the real number $x$ from $7$. Therefore, the expression $|x-7|\ge 5$ means: "the distance of a real number $x$ from $7$ is at least 5 units" (refer to the image below for the graph)
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.