Question

At a bowling alley, the cost of shoe rental is $2.55 and the cost per game is $3.75. If f (n) represents the total cost of shoe rental and n games, what is the recursive equation for f (n)? f (n) = (2.55 + 3.75)n, n > 0 f (n) = 2.55 + 3.75n, n > 0 f (n) = 2.55 + 3.75 + f (n − 1), f (0) = 2.55 f (n) = 3.75 + f (n − 1), f (0) = 2.55

Answer 1

To find the recursive function we need to take into account that shoe rental doesn't depend on the number of games you play. You rent a pair of shoes and you pay for it just once, but the cost per game does depend on the number of games (n), then the total cost of shoe rental and n games will be:

$\begin{gathered} f(n)=\cos t\text{ of shoe rental + cost per game x number of games} \\ f(n)=2.55+3.75n,n>0 \end{gathered}$