Arithmetic and Geometric Series and Sequences

Which kind of sequence has a common difference?

• Arithmetic

• Geometric

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

• Arithmetic

• Geometric

• Neither

Evaluate the Arithmetic Series

• 105

• 210

• 100

• 420

Find the sum for the following series. 

• 49

• 3.14

• 1.33

• 1.66

• Arithmetic

• Geometric

Answer explanation

Percentages are almost always Geometric.

The graph of a geometric sequence is ​ (a)   .

• exponential

• Linear

• quadratic

Evaluate the series.

• 36

• 85

• 35

• 86

Find the sum of the first 25 terms of the series: 6+14+22+30+...

• 450

• 2650

• 2550

• 550

Find the sum of the first 718 terms for the series

2 + 4 + 6 + ... + 1436

• 1,797

• 116,236

• 321,704

• 516,242

What kind of sequence is illustrated below?
 400, 200, 100, 50, 25, ...

• Arithmetic

• Geometric

• Neither