A video game club charges a fixed annual membership fee of $19 and $5 per video game rented. Let f(n) represent the total annual cost of renting n video games. Which of the following functions best represents the relationship between f(n) and n if the membership was decreased by $10 the next year?

f(n) = 19n + 5

f(n) = 5n + 9

f(n) = 4n + 29

f(n) = 5n + 29

Question

A video game club charges a fixed annual membership fee of $19 and $5 per video game rented. Let f(n) represent the total annual cost of renting n video games. Which of the following functions best represents the relationship between f(n) and n if the membership was decreased by $10 the next year?

 f(n) = 19n + 5

 f(n) = 5n + 9

 f(n) = 4n + 29

 f(n) = 5n + 29

ranga · Answer

Total fee = Membership fee + Rental fee.
Original Membership fee was fixed at $19
Rental fee is $5 per video and so for n videos it is 5n
Total fee f(n) = 5n + 19 is the original equation.

If the membership fee is decreased to $10 what will the above equation change to?

anonymous · Answer

SO would it be D? SInce you add ten to 19?