Geometric Sequence

1. Determine if the sequence is an arithmetic or geometric sequence.

5, 10, 20, 40, 80, . . .

• Arithmetic Sequence

• Geometric Sequence

2. Determine if the sequence is an arithmetic or geometric sequence.

2, 9, 16, 23, 30, . . .

• Arithmetic Sequence

• Geometric Sequence

3. Determine if the sequence is an arithmetic or geometric sequence.

1, 3, 9, 27, 81, . . .

• Arithmetic Sequence

• Geometric Sequence

4. Determine if the sequence is an arithmetic or geometric sequence.

2, -6, 18, -54, 162, . . .

• Arithmetic Sequence

• Geometric Sequence

5. Determine if the sequence is an arithmetic or geometric sequence.

-1, 1, -1, 1, -1, . . .

• Arithmetic Sequence

• Geometric Sequence

6. Determine the common ratio(r) of the sequence

3, 21, 147, 441

• -7

• -1/7

• 1/7

• 7

7. Determine the common ratio(r) of the sequence

5, -20, 80, -320

• -4

• -1/4

• 1/4

• 4

8. Complete the geometric sequence below

___, ___, 12, 24, 48

Note: arrangement of answer is important. You may use "and" or "&" to separate your answer.

9. Complete the geometric sequence below

2, ___, ___, 250, 1250

Note: arrangement of answer is important. You may use "and" or "&" to separate your answer.

10. Complete the geometric sequence below

256, 128, ___, ___, 16

Note: arrangement of answer is important. You may use "and" or "&" to separate your answer.