Help !!Which method can NOT be used to solve this problem? its not the last option can anyone help ?

the function makes a strait line horizontally with no x intercept but a y intercept at 9.

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4

if i put something wrong your not gonna like it so rather not say nothing.