SOLUTION: What is the common ratio of the geometric sequence Shown Below? -2, 4, -8, 16

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: What is the common ratio of the geometric sequence Shown Below? -2, 4, -8, 16      Log On


   

Question 1025517: What is the common ratio
of the geometric sequence
Shown Below?
-2, 4, -8, 16
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Notice you are multiplying by -2 each time.
Thus -2 is the common ratio.
Another way of finding this is to divide
a%5Bn%2B1%5D+%2F+a%5Bn%5D