Find the Common Ratio of a Geometric Sequence
If the given sequence is a geometric sequence, find the common ratio.
-$$\frac { 2 } { 3 } , \frac { 8 } { 3 } , \frac { 32 } { 3 } , \frac { 128 } { 3 } , \frac { 512 } { 3 }$$
A) 4
B) not a geometric sequence
C) 5
D) 6

Question

Quizplus · Accepted Answer

To find the common ratio, we divide each term by the one that comes before it. We get: 
$$\frac { 8/3 }{ 2/3 } = 4$$ 
$$\frac { 32/3 }{ 8/3 } = 4$$ 
$$\frac { 128/3 }{ 32/3 } = 4$$ 
$$\frac { 512/3 }{ 128/3 } = 4$$

Since each division gave us the same answer of 4, it is the common ratio.

Find the Common Ratio of a Geometric Sequence If the Given

Find the Common Ratio of a Geometric Sequence
If the Given