Affine Function in 2D + 3D
Ax + By + C = an affine function of 2 variables
Ax + By + Cz + D = an affine function of 3 variables
Let's consider an affine function of 2 variables i 2D.
Ax + By = constant.
Set B= 0, A is not Ax = const , x = const/ A
Gives Us