A, B and C are constants and the values of A and B cannot both be equal to zero.
The equation is usually written with a positive value for A.
The slope of the line is:
The direction vector is:
Determine the equation in general form of the line that passes through Point A = (1, 5) and has a slope of m = −2.
Write the equation in general form of the line that passes through points A = (1, 2) and B = (−2, 5).