Equation of a straight line

This example demonstrates the geometric and algebraic representation of a straight line. Key mathematical concepts include slope, intercept, and various forms of the equation. Construction involves GeoGebra commands such as Textfield, Vector, c_2, c_1, O, a_2, a_1, b_2, b_1, o_1, o_2, f, o_3, text9, text10, InputBox1, InputBox2, InputBox4, InputBox5, InputBox7, InputBox8, l_1, A, B, u, x_1, y_1, z_1, C, v, g, text2, text1, InputBox3, InputBox6, InputBox9, text4, text5, text6, text3, text7, text8. Suitable for middle or high school mathematics education to understand the construction and application of the straight line equation.