Parabola Dynamic Demo

This example dynamically demonstrates the parabola and its parameter changes, visually showing the relationship between the parabola's shape and position; Core math concepts include parabola equation, parameter a, vertex (h,k), and linear equations; Construction highlights derived from GeoGebra commands: objects a(parameter), h,k(vertex coordinates), f(function), text1, text2(text annotations), g(graph), b(辅助线); Suitable for high school mathematics teaching to understand the standard equation of a parabola and its parameter significance.