Identify Arithmetic and Geometric

Is the sequence arithmetic, geometric, or neither:

17, 9, 1, -7, ...

• Arithmetic

• Geometric

• Neither

Carey is organizing her books and putting them on shelves. She put 2 books on the first shelf, 8 books on the second shelf, 32 books on the third shelf, and 128 books on the fourth shelf. What kind of sequence is this?

• Geometric

• Arithmetic

• Both

• Neither

Which kind of sequence has a common ratio?

• Arithmetic

• Geometric

Which kind of sequence has a common difference?

• Arithmetic

• Geometric

• Arithmetic

• Geometric

Answer explanation

Percentages are almost always Geometric.

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

• Arithmetic

• Geometric

• Neither

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

• Arithmetic

• Geometric

• Neither

Is the sequence geometric or arithmetic?
6, 18, 54...

• Arithmetic

• Geometric

• Neither

Is the sequence -4, -12, -36, -108,... arithmetic, geometric, or neither?

• arithmetic

• geometric

• neither

Does the following table represent a geometric sequence or an arithmetic? Explain 

• geometric, it has a constant rate

• geometric, it has a constant percentage

• arithmetic, it has a constant rate

• arithmetic, it has a constant percentage