A115B-Geometric Series (Identify and Find Common Ratio)

1. State if each sequence is geometric.

11, 17, 23, 29, ...

Yes

No

Question 1 of 10

2. State if each sequence is geometric.

4, 12, 36, 108, ...

No

Yes

Question 2 of 10

3. State if each sequence is geometric.

0, 2, 4, 6, 14, ...

Yes

No

Question 3 of 10

4. State if each sequence is geometric.

-2, 6, -18, 54, ...

Yes

No

Question 4 of 10

5. State if each sequence is geometric.

4, 7, 12, 19, ...

No

Yes

Question 5 of 10

6. State if each sequence is geometric.

-3, 6, -12, 24, ...

Yes

No

Question 6 of 10

7. Find the common ratio.

2, 4, 8, 16, ...

$r = 4$

$r = 5$

$r = -3$

$r = 2$

Question 7 of 10

8. Find the common ratio.

1, 3, 9, 27, ...

$r = 4$

$r = -5$

$r = 3$

$r = 5$

Question 8 of 10

9. Find the common ratio.

-3, -12, -48, -192, ...

$r = 5$

$r = -4$

$r = 4$

$r = -5$

Question 9 of 10

10. Find the common ratio.

-1, -5, -25, -125, ...

$r = \frac {1}{2}$

$r = \frac {1}{5}$

$r = -\frac {1}{5}$

$r = 5$

Question 10 of 10