For the geometric sequence, find the common ratio, r.
-3, 9, 27, 81, 243, . . .
A) 9
C) 27
D) 3

Question

For the geometric sequence, find the common ratio, r.
-3, 9, 27, 81, 243, . . .
A) 9 
C) 27 
D) 3

Quizplus · Accepted Answer

The common ratio in a geometric sequence is found by dividing any term by the previous term. Using the given sequence, we can see that each term is 3 times the previous term. Therefore, the common ratio is 3. To find the common ratio, we divide any term by the previous term. For example, 9/3 = 3, 27/9 = 3, and so on. Therefore, the common ratio is 3.

For the Geometric Sequence, Find the Common Ratio, R