SOLUTION: find the general term an for the geometric sequence a1 = -6 a2 = 30

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Question 627027: find the general term an for the geometric sequence
a1 = -6
a2 = 30
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
a2 = r*a1

30 = r*(-6)

30/(-6) = r

-5 = r

r = -5

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General term:

a%5Bn%5D+=+a%5B1%5D%2Ar%5E%28n-1%29

a%5Bn%5D+=+-6%2Ar%5E%28n-1%29

a%5Bn%5D+=+-6%2A%28-5%29%5E%28n-1%29