Geometric Arithmetic

Which kind of sequence has a common ratio?

• Arithmetic

• Geometric

Which kind of sequence has a common difference?

• Arithmetic

• Geometric

Is this sequence arithmetic, geometric, or neither?
{26, 22, 18, 14, ...}

• Arithmetic

• Geometric

• Neither

What is the common ratio: 5, 25, 125, 625...

• 25

• 20

• 5

• 4

• Arithmetic

• Geometric

Answer explanation

Percentages are almost always Geometric.

• Arithmetic

• Geometric

Answer explanation

Percentages are almost always Geometric.

What is a_{5 (5th term)} in the sequence defined as follows? a_n = 5 ⋅ 2^(n-1) 

• a₅ = 160

• a₅ = 40

• a₅ = 10

• a₅ = 80

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

• u_n = 2(11)^n-1

• u_n = 11(2)

• u_n = 11(2)^n-1

Write the explicit formula for the sequence.

Name the Sequence:

300, 150, 75, 37.5.....

• A. Arithmetic

• B. Geometric

• C. Recursive

• D. Explicit