Function Derivative

This example demonstrates the tangent line and its slope at a point on a function, visually illustrating the geometric meaning of the derivative. Core mathematical concepts include derivative, tangent, slope, and function graph. It uses commands/objects like Tangent, Slope, Textfield, f, a, T, t, s, B, showg, InputBox1, g, Start, Stop in GeoGebra for construction. Suitable for high school mathematics teaching to help students understand the definition and geometric application of derivatives.