Find the common ratio, r, for the geometric sequence
-$1,-3,9,-27,81, \ldots$
A) -4
B) 81
C) 3
D) -3

Name: Find the common ratio, r, for the geometric sequence -$1,-3,9,-27,81, \ldots$ A) -4 B) 81 C) 3 D) -3
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Question

Quizplus · Accepted Answer

The common ratio, r, in a geometric sequence is found by dividing any term by its preceding term. For this sequence, dividing -3 by 1 gives -3, or dividing 9 by -3 also gives -3, confirming the common ratio is -3.

Find the Common Ratio, R, for the Geometric Sequence - 1,−3,9,−27,81,…1,-3,9,-27,81, \ldots1,−3,9,−27,81,…

Find the Common Ratio, R, for the Geometric Sequence
- $1,-3,9,-27,81, \ldots$