• Isolate *y* to one side of the inequality (if necessary).
• Replace the inequality symbol with an = sign to create an equation.
• Graph the straight line of the equation. (This will be the boundary line of the inequality graph.)
• Draw the line dashed if you have a "strict" inequality (*less than* or *greater than).*
• Draw the line solid if the inequality is *less than or ***equal to** or *greater than or ***equal to**.
• Choose a point **not **on the line as a test point. The point (0,0) is an easy point to test, as long as it is not **on** the line. The test point will lie in one of the *half-planes* formed by the boundary line.
• If the test point makes the inequality true, shade that side of the line (shading over the point). If the test point makes the inequality false, shade the other side of the line (not shading over the point). |