Writing Equations of Horizontal and Vertical Lines

This example demonstrates how to write equations of horizontal and vertical lines. It involves core math concepts like linear equations and coordinate geometry. Key GeoGebra commands and objects used include Random for generating random numbers, Textfield for displaying text, variables a, b, A, c, d, B, button1 for triggering actions, g for graphics, and various text and input objects like text3, e, f, h, InputBox1, InputBox2, text1, text2, text4, text5. It is suitable for high school mathematics students learning and practicing the writing of horizontal and vertical line equations.