Rays gym charges an initial sign up fee of $25.00 and a monthly fee of $15.00 how do i put this in a function for x months

this doesn't make sense lol

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.