Algebra 1

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

Chapter 3 - Solving Inequalities - Chapter Test - Page 227: 11


$n \geq -1$ or $n < -5$ Please see the graph.

Work Step by Step

$4+3n\geq1$ $4+3n-4\geq1-4$ $3n\geq -3$ $3n/3\geq -3/3$ $n\geq -1$ or $-5n>25$ $-5n/-5>25/-5$ $n < -5$ Thus, either $n \geq -1$ or $n < -5$. Since $n \geq -1$, we would use a solid circle (or line) at $n=-1$. Since $n < -5$, we would use a open circle (or dotted line) at $< -5$. These inequalities would be graphed on the same number line.
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