Question

Describe the following sequence as arithmetic, geometric or neither. 2, 4, 6, 12, 14. . . .

Answer 1

It Is neither arithmetic or geometric

Answer 2

If it was arithmetic each term would be the same difference from the previous term...

4-2 does not equal 12-6 so this is not an arithmetic sequence.

If it was a geometric sequence each term would be a constant ratio when compared to the previous term...

4/2 does not equal 6/4 so this is not a geometric sequence.

So this sequence is neither.