Sequences

What type of sequence is this?
{2, 5, 10, 13, 26, ...}

• Arithmetic
• Geometric
• Neither
• Both arithmetic and geometric

What is the common difference or common ratio?
{48, 32, 16, 0, ... }

• d = -16

• r = 2

• d = 2

• r = -16

What is the common different or common ratio? 
{96, 48, 24, 12, ... }

• r = 1/2

• r = 2

• d = 1/2

• d = 2

What is the 8th term in the sequence below?
3, 9, 27, 81, ...

• 19,683
• 6,561
• 2,187
• 729

Find the 22nd term of the following sequence:
5, 8, 11, ...

• 14
• 68
• 63
• 71

The difference between an "arithmetic" and "geometric" sequence is what?

• Arithmetic is multiplying; geometric is adding

• Arithmetic is adding; geometric subtracting

• Arithmetic is adding; geometric is multiplying

• Arithmetic is multiplying; geometric is dividing

What kind of sequence is this?

207, 189, 171, 153, ...

• Arithmetic

• Geometric

• Neither

What kind of sequence is this? Determine r or d

-2, -12, -72, -432, ...

• Arithmetic, r = 6

• Geometric; r = 6

• Arithmetic, d = -10

• Geometric, d = -10

Find a₈₅

-2, -5, -8, ...

• -254

• -381

• -251

• -384

Find a₁₅

10, 20, 40, ....

• 163840

• 81920

• 94800

• 134820