is the sequence 4, 6, 10, 18, … arithmetic, geometric, or neither. and what is the next two terms?

Question

thomaster · Answer

+2 +4 +8 +?

anonymous · Answer

+ 16?
+ 32?
so 34 and 66, right?

thomaster · Answer

Yes :) would that be arithmetic or geometric?

anonymous · Answer

I'm not sure about that, how can I tell?

thomaster · Answer

An arithmetic sequence goes from one term to the next by always adding (or subtracting) the same value.
A geometric sequence goes from one term to the next by always multiplying (or dividing) by the same value

thomaster · Answer

no you don't add the same value every time
You multiply the number you add by 2 every time, so its geometric

anonymous · Answer

I misread what you said, I see now.

Thank you very much.

thomaster · Answer

you're welcome :)