Question

2, 6, 18, 54,....

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


A) 3; f(n) = 2(3)n-1

B.) 1/3; f(x) = 2(3)n-1

C) 3; f(n) = 2(1/3)n-1

D). 1/3; f(n) = 2(1/3)n-1

Answer 1

A

Explanation:

3; f(n) = 2(3)n-1 is correct. Since each term is multiplied by 3 to get to the next term, the common ratio is 3. The common ratio is also the base of an exponential function.

Answer 2

Answer:i think it is c

Explanation: