SOLUTION: Is the sequence geometric? If so, identify the common ratio. 6, 12, 24, 48, ...

Algebra ->  Sequences-and-series -> SOLUTION: Is the sequence geometric? If so, identify the common ratio. 6, 12, 24, 48, ...      Log On


   

Question 1204758: Is the sequence geometric? If so, identify the common ratio.
6, 12, 24, 48, ...
Answer by math_tutor2020(3817) About Me  (Show Source):
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Answer: Yes it is geometric. The common ratio is 2.

We can determine this by dividing each term by its previous term.
r = common ratio
r = term2/term1 = 12/6 = 2
r = term3/term2 = 24/12 = 2
r = term4/term3 = 48/24 = 2
We get the same result each time, which is the common ratio.
It means we double each term to get the next term.