Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 3 - Solving Inequalities - Mid-Chapter Quiz - Page 193: 9

Answer

$n\geq-2$
1501994482

Work Step by Step

$2n+1\geq-3\longrightarrow$ subtract 1 from each side $2n+1-1\geq-3-1\longrightarrow$ subtract $2n\geq-4\longrightarrow$ divide each side by 2 $2n\div2\geq-4\div2\longrightarrow$ divide $n\geq-2$ Since -2 is included in the solution set, the endpoint of the graph is a solid circle.
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