Quadratic Inequalities by stflew

This example demonstrates the solution set of quadratic inequalities on a coordinate plane. Key math concepts include quadratic function graphs, inequality solution sets, critical points (roots), and interval analysis. GeoGebra commands/objects like Max, Min, Polygon are used to plot function graphs, identify critical points, and construct polygons to represent solution sets. Suitable for high school students to learn and understand the geometric meaning of quadratic inequalities, ideal for classroom instruction or self-exploration.