If we have 2 points in R3example A(2,0,2) and B(0,2,0)
Whitch is the equation of line passing through the paints A,B.
I don't know the type.Thank you
Create vector AB = B - A = (0, 2,0) - (2, 0 , 2) = ( -2, 2, -2)
Then the equation of the line is just
LAB = (2,0,2) + t (-2, 2, -2)
+343 
