What is the common ratio of the sequence? -2, 6, -18, 54,...

Mathematics · High School · Tue Nov 03 2020

Answered on

Given the geometric sequence:

-2, 6, -18, 54

1st term = -2

2nd term = 6

Determine the common ratio:

Solution:
In order to determine the common ratio, we simply need to divide the second term by the first term.

Common Ratio = 2nd term/1st term

Common Ratio = 6/ -2

Common Ratio = -3

Final answer:

Common Ratio = -3

Answered on

Given the sequence:

-2, 6, -18, 54..

Determine the common ratio.

Solution:

In order to determine the common ratio, we simply needed to divide the 2nd term by the first term.

Common Ratio = 2nd term/1st term 

Common Ratio = 6/-2

Common Ratio = -3

Final answer:

Common Ratio = -3