Algebra I Recipe: Graphing Quadratic Inequalities

Steps:

1. Determine if the boundary will open up or down.
2. Find the vertex point.
3. Find the x-intercepts.
4. Find additional points by filling in the box.
5. Graph every point found.
6. Connect the points.
• Solid boundary – if standard form has ≥ or ≤.
• Broken boundary – if standard form has > or <.
7. Shade the graph.
• Above the boundary – if standard form has > or ≥.
• Below the boundary – if standard form has < or ≤.

Practice Problems