Amembership to the local gym costs $40 and then $2 per visit. what is the maximum number of visits that can be made for $90? is the function's model linear or exponential?

90-40=50
50/2= 25
 25 visits can be made for 90$
linear function with the y-intercept at 40

First i would come up with an equation that represents the question. the equation i would use is y=2x+40 with x being the number of visits and y being the total amount of money the membership would cost. then i would plug in the amount of $90 to get the equation 90=2x+40. then i would solve for x by first subtracting 40 from both sides to get 50=2x then divide by 2 on both sides to get x=25.