Question

A sequence has its first term equal to 3 and each term of the sequence is obtained by adding 5 to the previous term. If f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence?

f(1) = 3 and f(n) = f(n - 1) + 5; n > 1

f(1) = 5 and f(n) = f(n - 1) + 3; n > 1

f(1) = 3 and f(n) = f(n - 1) + 5n; n > 1

f(1) = 5 and f(n) = f(n - 1) + 3n; n > 1

Answer 1

First one? @hartnn

Answer 2

Yes it is