Question

Which answers are geometric sequences?

There is more than one correct answer. Select all that apply.
{108, 36, 12, 4, ...}
{2.5, 4,5.5, 7, ...}
{0, 10, 20, 30,...}
O{-13, -6, 1,8,...}
{1,-1,1,-1,1,...}
{2, -10,50, -250, ...}

Answer 1

1 and 6

Explanation:

A geometric sequence goes from one term to the next by multiplying/dividing by the same value, example: 1, 4, 16, 64 is a geometric sequence because each number is 4x the last, an other example would be: 27, 9, 3, 1 with each term being 1/3 the last.

Only Answer 1 and 6 apply to these rules.