Use the slope of AB to determine which line below, if any, is parallel to AB.

A(1,8) B6,-4)

a. y = 5/12x + 5
b. y = -5/12x + 5
c. y = 12/5x + 5
d. none

(1,8) and (6,-4) ?

m = (-4-8)/(6-1) = -12/5
so none