GCA, Arithmetic and geometric sequences

The next term of the sequence 2,4,8,16 are

• 64

• 32

• 108

• 20

What kind of sequence is the pattern 15, 17, 20, 24, 29, ...?

• Arithmetic

• Geometric

• Neither

The next term of the series 11,8,5,2 are

• -1

• -2

• 1

• 2

Is the sequence arithmetic: 37, 31, 25, 19, ..

• Yes

• No

Is the sequence 2, 4, 12, 48,... geometric?

• Yes

• No

3. 5, 15, 45, 135 is a ..

• Geometric sequence with r = 1/3

• Geometric sequence with r = 3

• Arithmetic sequence with d = 10

• Arithmetic sequence with d = 3

Identify the common difference.

97, 86, 75, 64, ...

• 8

• 11

• -11

• -8

Find the common ratio: 4, -16, 64, -256, ...

• r = -4

• r = 2

• r = -2

• r = 4

What is the 100th term in the sequence a_n = 4n-12

• 40012

• 100

• 388

• 400

Find the next two terms: -4, -12, -36, -108, ...

• 36, -108

• 324, -972

• -108, 324

• -324, -972