Sequences

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

• yes
• no

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

• arithmetic
• geometric
• neither

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

• arithmetic
• geometric
• neither

Find the common ratio for the geometric sequence.

• -4
• 4
• 1/4
• -1/4

What is the 5th term of the sequence 7, 14, 28, ...?

• 72

• 48

• 56

• 112

Find the 9th term in the following geometric sequence:

4, 8, 16, 32, ...

• 384

• 512

• 768

• 1,024

Write the explicit equation for the geometric sequence: 15, 45, 135, . . . ?

Write the explicit equation for the geometric sequence:

10, 20, 40, 80, ...

Find the 26th term in the arithmetic sequence: 20, 26, 32, 38, ...

• 182
• 176
• 170
• -118

Given the sequence:

25, 21, 17, 13,...

Write the explicit equation that models the sequence.

• a_n = 25 + 4(n-1)

• a_n = 29 - 4(n-1)

• a_n = 25 - 4(n-1)

• a_n = 29 + 4(n-1)