Question

Determine whether the sequence is arithmetic, geometric,
or neither.
2, 8, 32, 128, ...

Answer 1

Explanation:

The sequence is geometric

it can be defined as

`S_n = a*b^n^-^1\\2 = ab^0\\8 = ab^1`

`2 = a\\8 = 2*b\\b = 4\\S_n = 2(4)^n^-^1`