Posted by jessica on Tuesday, July 26, 2011 at 4:30pm.
Graphing Linear Inequalities
1. Graph the boundary line. This is done by using an equal sign instead of
the inequality sign. The boundary line
is a dotted line if there's no equal sign in the inequality.
2. Shade the area that contains the solution. The solution is all points
above or below the boundary line. If
your inequality is y > 2x-4, the solution is above(>)the. If the inequality is y < 2x-4, the solution
is below(<) the line. Choose any point (x,y)in the shaded area and it will
satisfy your inequality. If you have a solid boundary line,y =< 2x-4, all
points on the boundary line should also satisfy the inequality.
I hope this will help.
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