Quadratic Function Graph Demo by Dr. Doug Davis, 3D

This example demonstrates how to graph and analyze quadratic functions using GeoGebra. It illustrates the relationship between a parabola and its quadratic equation, and helps understand core concepts like symmetry by tracing key points such as the vertex, y-intercept, and intersection points. GeoGebra commands like Intersect and OrthogonalLine, along with objects like a, b, c, d, are used to construct elements like the vertex and x-intercepts. Suitable for high school mathematics education to visualize properties and transformations of quadratic functions.