Geometric Sequences

What does r represent?

• Radical

• Common difference

• Common ratio

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

• r = -4
• r = 2
• r = -2
• r = 4

The next term of the geometric sequence

4, 16, 64, ...

is

• 256

• 132

• 120

• 150

What does n represent?

• Number

• Nothing

• Term you are trying to find

Find the next three terms: 4, 12, 36, 108, ...

• 324, 972, 2916
• 972, 2916, 8748
• 405, 1215, 3645

What does a₁ represent?

• Any term

• First term

• Last term

Find the common ratio for the geometric sequence.

• 2/3
• 3/2
• -2/3
• -3/2

What is the common ratio for the sequence:
28, 14, 7, 3.5...

• 2
• 1/2
• -14
• -7

Find the 9th term in the following geometric sequence:

4, 8, 16, 32, ...

• 384

• 512

• 768

• 1,024

Find the common ratio for the geometric sequence.

• 10
• 1/2
• 2
• 4