Question 1159732
(0, y)  with slope 225 and reaches (8, 4580) 
slope is (4580-y)/8=225
so 4580-y=1800
y=2780
(0, 2780) has a y-intercept of $2780

the other function is y=56x+1456+1400
y=56x+2856
the y-intercept here is at (0. 2856), so the other function has the smaller y-intercept.