SOLUTION: Write the rule for the nth term of the geometric sequence a1=8, r=1/2

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Question 731307: Write the rule for the nth term of the geometric sequence a1=8, r=1/2
Answer by MathLover1(20850) About Me  (Show Source):
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Given a geometric sequence with the first term a%5B1%5D and the common ratio r, the nth (or general) term is given by:
a%5Bn%5D+=+a%5B1%5D+%2A+r%5E%28n-1%29
if a%5B1%5D=8, r=1%2F2
then
a%5Bn%5D+=+a%5B1%5D+%2A+r%5E%28n+-1%29
a%5Bn%5D+=+8+%2A+%281%2F2%29%5E%28n+-1%29