Question

What is the common ratio of the following sequence?
2, -4, 8, -16

Answer 1

For the common ratio, it's a term divided by the one before it.

Answer 2

So we pick any two (-4 and 2, for example) and divide them. What's -4/2?

Answer 3

...?

Answer 4

2

Answer 5

2? Check your sign.

Answer 6

-2

Answer 7

That's your ratio.

Answer 8

Multiply By -2 .... I Thinkk . But IM NOT POSITIVE (: