The explicit formula below describes a linear function, where n is a positive integer.

Question

f(n) = 5n +12

Which recursive formula describes the same function?

a1=7
an=an−1+15


a1=7
an=an−1+5

a1=5
an=an−1+12

a1=17
an=an−1+5

Answer 1

a1=17, an=an−1+5