Calculus with Applications (10th Edition)

Published by Pearson
ISBN 10: 0321749006
ISBN 13: 978-0-32174-900-0

Chapter R - Algebra Reference - R.5 Inequalities - R.5 Exercises - Page R-21: 7


$-7\leq x\leq-3$

Work Step by Step

This is a closed interval. The brackets at either side indicate that both endpoints are included in the interval. So if x is a number in this interval, it will be between $-7$ and $-3$ , with the possibility of being one of the endpoints. We can write this as $-7\leq x\leq-3$
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