Answer
$z\leq-5$ has a solution set that includes everything on the number line to the left of -5.
Work Step by Step
A solid circle is used at -5 since -5 is part of the solution set.
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 3 - Solving Inequalities - 3-1 Inequalities and Their Graphs - Practice and Problem-Solving Exercises - Page 168: 23
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