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) = 0.15nf(n) = 0.50nf(n) = 0.15n + 0.35f(n) = 0.50n + 0.15
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f(n) = 0.15n + 0.35
Step-by-step explanation:
Day Amount over due
1 $0.50
2 $0.65
3 $0.80
4 $0.95
5 $1.10
let say function is
f(n) = an + b
where a & b are constants & n is number of Days
f(n) is Over due
for n = 1
f(1) = a + b = 0.50
for n = 2
f(2) = 2a + b = 0.65
(2a + b) - (a + b) = 0.65 - 0.50
=> a = 0.15
0.15 + b = 0.50
=> b = 0.35
f(n) = 0.15n + 0.35
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Answer:
C: f(n) =0.15n + 0.35
Step-by-step explanation:
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