Line A: x[tex]\frac{1}{1}[/tex]
Line B: x[tex]\frac{2}{3}[/tex]
An easy way to see this is too look at the points. For A, you can see the first contact it sees is (x,y) (1, 1). For B it first crosses (2, 3) you rewrite each thing y over x, so you get x[tex]\frac{1}{1}[/tex] and x[tex]\frac{2}{3}[/tex]
