Absolute Value - Distance between Two Numbers

This example demonstrates how to use GeoGebra to visualize the absolute value representation of the distance between two points. Key math concepts include absolute value, distance formula, coordinates, and piecewise functions. Construction highlights involve using the Segment command to draw line segments and objects like A, B, a, A_1, B_1, a_1. Suitable for middle school and high school students learning the geometric meaning of absolute value functions and distance formulas, as well as analytical geometry teaching.