Geometric Recursive Sequence

Find the common ratio for the geometric sequence.

• 2

• -2

• 1/2

• -1/2

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

• 2

• 1/2

• -14

• -7

What is the recursive rule for the sequence:
11, 22, 44, 88...

• a_n = 2(11)^n-1

• a_n = 11x 2

• a_n = 11(2)^n-1

• a_n = 2a_n-1

Given the sequence: 125, 25, 5, .... Write the explicit rule:

• t(n) = (125)(5)⁽ⁿ⁾

• t(n) = 125(1/5)^(n-1)

• t(n) = 625(5)⁽ⁿ⁾

• t(n) = 125 + 5n

Find the 11^th term for:  64, -32, 16, -8, …  

• -.0625

• .0625

• -.03125

• .03125

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

• yes

• no

• 1

• 3

• 0

• 2

What is the 14th term of the geometric sequence?

• 14,348,907

• 4,782,969

• 1,594,323

• 45

Find a₆.

1, 3, 9, 27, 81, ...

• 243

• 81

• 729

• 3

Determine if the following sequence is arithmetic or geometric.

6, 12, 24, 48, 96, ...

• Arithmetic

• Geometric