1.Graph the related boundary line. Replace the <, >, ≤ or ≥ sign in the inequality with = to find the equation of the boundary line.
2.Identify at least one ordered pair on either side of the boundary line and substitute those (x,y) values into the inequality. Shade the region that contains the ordered pairs that make the inequality a true statement.
3.If points on the boundary line are solutions, then use a solid line for drawing the boundary line. This will happen for ≤ or ≥ inequalities.
4.If points on the boundary line aren’t solutions, then use a dotted line for the boundary line. This will happen for < or > inequalities.
