Find the common ratio of the give sequence, and write an exponential function which represents the sequence. Use n=1, 2, 3, ...

A) 3; f (n) = 81^n-1

B) 3; f (n) = 81 (3) ^n-1

C) 1/3; f (n) = 81 (3) ^n-1

D) 1/3; f (n) = 81 (1/3) ^n-1

Question

21 October, 22:51

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Simeon · Answer 1

You have not given the sequence.

If it is 81, 243, 729, ... then B is the answer.

If it is 81, 27, 9, ... then D is the answer.

Find the common ratio of the give sequence, and write an exponential function which represents the sequence. Use n=1, 2, 3, ...A) 3; f (n) = 81^n-1B) 3; f (n) = 81 (3) ^n-1C) 1/3; f (n) = 81 (3) ^n-1D) 1/3; f (n) = 81 (1/3) ^n-1