Absolute Value Function

This example demonstrates the graph and properties of absolute value functions. It involves core mathematical concepts such as absolute value functions, function graphs, symmetry of functions, and transformations of functions. The construction points include using GeoGebra's Line and LaTeX commands to draw function graphs, and using objects y0, x0, V1, V2, lin, coeff, f, OR, main, and text1 to construct function equations. Suitable for middle school and high school math teaching, especially for learning functions and graphs.