Unit 6 Test Review

What does r represent?

• Radical

• Common difference

• Common ratio

What does a₁ represent?

• Any term

• First term

• Last term

Find the common ratio for the geometric sequence.

• 10
• 1/2
• 2
• 4

Is the sequence -432, 72, -12, 2,...geometric?

• yes
• no

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

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

What is the 9^th term in a geometric sequence with a common ratio of 2 and a first term of 3?

• 384

• 768

• 1,536

• 27

What are the next 3 terms in the following geometric sequence:

512, 256, 128, ___, ___, ___, ...

• 1024, 2048, 4096

• 32, 8, 2

• 64, 32, 16

• 92, 66, 38

Find the common ratio: 64, -16, 4, -1, ...

• r = -8
• r = -1/4
• r = -4
• r = 4

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

• arithmetic
• geometric
• neither

Find the common ratio for the geometric sequence.

• 1
• -1
• 7
• -7