Derivative and Logarithmic Function Demo

This example demonstrates the relationship between derivatives and logarithmic functions in a coordinate system by plotting the function and its derivative, showing the geometric meaning of derivatives. The core math concepts involved include derivatives, logarithmic functions, coordinate geometry, and isosceles triangles. Construction highlights use GeoGebra commands/objects f (function), f' (derivative), and text1 (text). Suitable for high school students learning calculus and analytical geometry.