Once we are in possession of the baseline equation:
Given a value x, we can calculate a value y such that y = mx + b.
(x, y) is a point on the baseline.
The value of z at (x, y) is 0.
Using a slope Delta Z / Delta Y ...
I skipped a step.
Given the coordinates (x, y), what is the value of z where (x, y, z) is a point on the plane P?
The plane P intersects the x - y coordinate plane on a line Lb.
The formula for Lb is z = 0, y = m[Lb]x + b.
Lb and a slope m[z] define a plane (P):
I agree, this is all very confusing. I think I should work on my notation system.
