Anjali's Bikes rents bikes for $19 plus $6 per hour. Micaela paid $49 to rent a bike. For how many hours did she rent the bike?​

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

(x) - (y) = (1 + 4i)