Quiz about Geometric Sequences

Question 1

Determine whether the sequence is arithmetic, geometric, or neither.

Accepted Answer

arithmetic

Answer

geometric

Answer

neither

Question 2

Determine whether the sequence is arithmetic, geometric, or neither.

Accepted Answer

geometric

Answer

arithmetic

Answer

neither

Question 3

Find the common ratio for the geometric sequence.

Accepted Answer

2

Answer

10

Answer

1/2

Answer

4

Question 4

Find the common ratio for the geometric sequence.

Accepted Answer

-1

Answer

1

Answer

7

Answer

-7

Question 5

Write the nth term rule for the geometric sequence.

Accepted Answer

_Un = 7(-1)^n-1

Answer

_Un = 7(1)ⁿ

Answer

_Un = 7(-1)ⁿ

Answer

_Un = -1(7)^n-1

Question 6

Is the sequence 256, 64, 16, 4,... geometric?

Accepted Answer

yes

Answer

no

Question 7

Find the common ratio: 16, 8, 4, 2, ...

Accepted Answer

r = 1/2

Answer

r = 2

Answer

r = 8

Answer

r = 1/4

Question 8

Is the sequence-4, -12, -36, -108,... geometric?

Accepted Answer

yes

Answer

no

Question 9

The next term of the series 4,16,64 is

Accepted Answer

256

Answer

132

Answer

120

Answer

150

Question 10

Is the sequence geometric or arithmetic?
3, 6, 9, 12...

Accepted Answer

Arithmetic

Answer

Geometric

Answer

Neither

Question 11

Is the sequence geometric or arithmetic?
6, 18, 54...

Accepted Answer

Geometric

Answer

Arithmetic

Answer

Neither

Question 12

What is the common ratio for the sequence:
3, 15, 75...

Accepted Answer

5

Answer

12

Answer

1/5

Question 13

Write the nth term rule for the geometric sequence.

Accepted Answer

U_n = 10(2)^n-1

Answer

U_n = 2(10)^n-1

Answer

U_n = 10(2)ⁿ

Answer

U_n = 2(10)ⁿ

Question 14

What is the nth term rule for the sequence:

11, 22, 44, 88...

Accepted Answer

U_n = 11(2)^n-1

Answer

U_n = 2(11)^n-1

Answer

Geometric Sequences

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