Arithmetic and Geometric Sequences

Which of the following is the common difference of the given arithmetic sequence:

16, 8, 0, –8, –16, . . . ?

• -9

• -8

• -7

• -6

A sequence in which the difference between terms is constant

• Arithmetic Sequence

• Geometric Sequence

• Mathematic Sequence

• Algebra Sequence

What is the common difference of the given arithmetic sequence: –2, 5, 12, 19, 26, . . . ?

• –2   

• 3

• 5

• 7

The difference between consecutive terms in an arithmetic sequence is called

• Common Difference

• Change

• Term Number

• Term

• Arithmetic

• Geometric

Answer explanation

Percentages are almost always Geometric.

• Arithmetic

• Geometric

Answer explanation

Percentages are almost always Geometric.

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

• exponential

• Linear

• quadratic

True or false: The common difference can be both positive or negative

• True

• False

Identify the explicit formula for an arithmetic sequence.

• The first term in the sequence

• The term number

• The term

• The common difference