Hurry!
a health club charges new members a one-time start-up fee in addition to a monthly fee. the cost, in dollars, of the membership for x months is modeled by the function
f(x) = 80 + 30x
what does the 80 represent in the function? (multiple choice) (1 point)
the start-up fee
the monthly fee
the rate of change in the monthly fee
the total amount charged each month
how did you know your answer for part a? write at least 2 complete sentences.
(2 points)
another health club (we will call it club b) charges a monthly fee of $35 a month and has a one-time start up fee of $20. write a function that models the cost, in dollars, of the membership at club b for x months. (2 points)
explain why you wrote your equation in part c the way you did. write at least 2 complete sentences. (2 points)
elizabeth wants to join a health club for 8 months to get in shape for her wedding. which club should she join? either show work or explain why you chose that club.