1. Graphing Quadratic Inequalities

2. Steps for Graphing Graph the vertex
2. Use the slope to get the other points
For < or > use DASHED
for ≤ or ≥ use SOLID line
Shade
For > or ≥, shade ABOVE the vertex,
for < or ≤ shade BELOW the vertex

3. Shading

4. Graph: y ≤ x2 + 6x – 4 * Vertex: (-3,-13) Slope 1 * Solid Line
* Less than means shade BELOW

5. Graph: y > -x2 + 4x – 3 * Vertex: (2, 1) Slope -1 * Dashed Line
* Greater than means shade ABOVE

6. Graph: y ≥ 2(x-4)2 – 4 * Vertex: (4, -4) Slope 2 * Solid Line
* Greater than means shade ABOVE

7. Graph: y > -3(x-2)2 + 9 * Vertex: (2, 9) Slope -3 * Dashed Line
* Greater than means shade ABOVE