Geometric or Arithmetic

2, 5, 8, 11,...

• Arithmetic

• Geometric

• Neither

−2, −10, −50, −250, ...

• Arithmetic

• Geometric

• Neither

−9, −109, −209, −309, ...

• Arithmetic

• Geometric

• Neither

1, 1/2 , 0, −1/2 , ...

• Arithmetic

• Geometric

• Neither

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

• exponential

• Linear

• quadratic

• Arithmetic

• Geometric

Answer explanation

Percentages are almost always Geometric.

−1, −5, −25, −125, ...

• Arithmetic

• Geometric

• Neither

−3, −1, −1/3 , −1/9, ...

• Arithmetic

• Geometric

• Neither

4, 12, 36, 108, ...

• Arithmetic

• Geometric

• Neither

For each sequence, state if it is arithmetic, geometric, or neither.

-1,-6,-36,-216,-1296.....

• Arithmetic

• Geometric

• Neither