Sequences P6

Given the sequence 2, 8, 14, 20, 26, ... What is the common difference?

• 2

• 4

• 6

• 8

What number follows 20 in this arithmetic sequence?

8,11, 14, 17, 20

• 5

• 23

• 26

• 29

Find the missing term in the geometric sequence: 8, 20, 50, 125, _____.

• 75

• 200

• 250

• 312.5

Is the sequence geometric? If so, identify the common ratio.

6, 12, 24, 48

• yes, 2

• yes, -2

• yes, 4

• no

What is the fifth term of the geometric sequence?

5, 15, 45,...

• 135

• 1875

• 1215

• 405

What are the next four terms of the arithmetic sequence 122, 111, 100, ...?

• 89, 78, 67, 56

• 95, 90, 85, 80

• 92, 88, 84, 80

• 99, 88, 77, 66

What is the fourth term of an arithmetic sequence in which f(1) = 3 and d = 6?

• 21

• 39

• 12

• 27

-21, -16, -11, -6, ...

Is this sequence arithmetic, geometric, or neither?

• arithmetic

• geometric

• neither

3, 9, 15, 22, ...

Is this sequence arithmetic, geometric, or neither?

• arithmetic

• geometric

• neither

Identify the common difference of the sequence below:

-2.3, -1.1, 0.1, 1.3,...

• -1.2

• 1.3

• 1.2

• -1.3