When you are graphing inequalities, you will graph the ordinary
linear functions just like we done before. The difference is that
the solution to the inequality is not the drawn line but the area
of the coordinate plane that satisfies the inequality.
The linear inequality divides the coordinate plane into two
halves by a boundary line (the line that corresponds to the
function). One side of the boundary line contains all solutions to
The boundary line is dashed for > and < and solid for ≥
Y ≤ 2x - 4
Here you can see that one side is colored grey and the other
side is colored white, to determined which side that represent y ≤
2x - 4, test a point.
We test the point (3;0) which is on the grey side.
The grey side is the side that symbolizes the inequality y ≤ 2x
Video lesson: Graph the inequality y > 2 -