Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 2 - Section 2.4 - Linear Inequalities and Problem Solving - Exercise Set - Page 85: 11



Work Step by Step

$x-7\geq-9$ Solve for x by adding 7 to each side of the equation. $x-7+7\geq-9+7$ $x\geq-2$ This is written in interval notation as $[-2,\infty)$ The use of [ indicates that -2 is included in the set of possible values for x.
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