Question

The sequence below represents Marisa’s fine at the library for each day that she has an overdue book:

$0.50, $0.65, $0.80, $0.95, $1.10, ...

Which equation represents Marisa’s library fine as a function of a book that is n days overdue?


f(n) = 0.15n
f(n) = 0.50n
f(n) = 0.15n + 0.35
f(n) = 0.50n + 0.15

Answer 1

@Loser66

Answer 2

@imqwerty

Answer 3

The fine increases with 0.15 each day. And it starts at 35 (day 0). Therefore it is: \[f(n) = 0.15n + 0.35\]