Question

Help please will give a medal and fan.

Given the geometric sequence where a1 = 4 and the common ratio is 3, what is the domain for n?

A) All integers where n ≥ 1

B) All integers where > 1

C) All integers where n ≥ 4

D) All real numbers

Answer 1

I think it's D.

Answer 2

what is 'n' denoting? a variable..or index..or..?

Answer 3

I was thinking it was D but not sure

Answer 4

This is all of the info it gives

Answer 5

Thank you @chosenmatt

Answer 6

if n is the index, the answer should be A. i.e., the ratio is

\[\frac{ a _{n+1} }{ a _{n }} = 3\]

does this seem right?

Answer 7

or did you write a^1 instead of a1?...