## Algebra 1

$x\lt-11$
$-12x\gt132\longrightarrow$ divide both sides by -12; reverse the inequality sign $-12x\div-12\lt132\div-12\longrightarrow$ divide $x\lt -11$ Check the inequality. Choose any number less than -11 and substitute for x. $-12(-20)\overset?\gt132$ $240\gt132\checkmark$ Since -11 is not included in the solution, the endpoint of the graph is an open circle.