a) No, clearly the starting points are different for each support: (0,0) is not ((2,1), etc.
b) No, similar to a) answer: (2,1) is not (6,3) etc
c) No, 2 does not equal 4, etc.
d) No, 1 does not equal 2, etc.
e) Yes, this is just the slope of the diagonal line: 1/2 = 2/4