Geometric and Arithmetic Sequences

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

• r = -4
• r = 2
• r = -2
• r = 4

The next two terms of the sequence 4,7,10,13 are

• 16 and 19
• 15 and 19
• 16 and 18
• 15 and 18

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

• Arithmetic
• Geometric
• Neither

What kind of sequence is the pattern 400, 200, 100, 50, 25, ...?

• Arithmetic
• Geometric
• Neither

Which formula represents this sequence:
2, 8, 14, ...

• 4n
• n + 6
• 3n + 2
• 5n - 2

Find a₁₂ in the sequence -1, -3, -9, -27, ...

• -177,147
• -19,683
• -59,049
• 118,098

Identify the common ratio.

28, 14, 7, 3.5...

• 2

• 1/2

• -14

• -7

Identify the common difference.

1, 201, 401, 601, ...

• d = 100

• d = 101

• d = 200

• d = 201

Identify the common ratio.

-3, -9, -27, -81, ...

• r = 6

• r = -6

• r = 3

• r = -3

225,75,25,8.33

• Geometric sequence with a common ratio of 1/3
• Geometric sequence with a common ration of 3
• Arithmetic sequence with a common difference of 58
• Common difference of 3