Determine whether the following sequence is geometric. If so, find the common ratio.
2, 6, 18, 54, ...
A.
The given sequence is geometric. The common ratio is requals=___. (Simplify your answer.)
B.
The given sequence is not geometric.
The above sequence is geometric since there is a common ration between each term. In this case, multiplying the previous term in the sequence by 3 gives the next term. We can write this out as a "formula" as the following:
