Question

Can someone please help me with this question? I will fan and medal!! I think I know the answer, but:

A sequence has its first term equal to 8, and each term of the sequence is obtained by adding 6 to the previous term. If f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence?

Answer 1

f(n)=f(n-1)+6
f(1)=8

Answer 2

A. f(1) = 6 and f(n) = f(n - 1) + 8; n > 1
B.f(1) = 8 and f(n) = f(n - 1) + 6; n > 1
C.f(1) = 8 and f(n) = f(n - 1) + 6n; n > 1
D. f(1) = 6 and f(n) = f(n - 1) + 8n; n > 1

Answer 3

B, first term equals 8 and n th term can be simply obtained by adding to previous function in the series

Answer 4

Oh okay thanks, that's what I thought.

Answer 5

ie f(1)=8, f(2)=14, f(3)=20
f(3)=f(3-1)+6
f(3)=f(2)+6
f(2)=f(1)+6
f(1)=8

Answer 6

=)