Graphing Lines with y-intercept 1 or -1

This example demonstrates how to graph linear functions with y-intercepts of 1 or -1 and adjustable slopes. Key math concepts include function graphing, linear functions, y-intercept, slope, and analytical geometry. GeoGebra commands used in construction include lm (linear regression), pm (point), m (slope), lb (line segment start), pb (point), b (text), text1 (text), f (function), text2 (text), A (point), B (point), g (function), ans (answer), and text3 (text). Suitable for high school students learning about the properties of linear functions and graphing techniques.