Question 42501
(12,0) and y-intercept (0,4).

slope, m= - (y-intercept/ x-intercept)
        = -(4/12)
        = -1/3
sabtitute m = -1/3 and (0,4)into y = mx + c 
4=(-1/3)(0) + C
C = 4
equation of the line IS y = (-1/3)x + 4