Question

Describe the sequence as arithmetic, geometric, or neither

{3, -6, 12, -24, 48, ... }
For arithmetic and geometric sequences, give the common difference or common ratio. if it is neither, choose "neither" for all blanks.
Type of Sequence:
Does it have
common difference, common ratio, or neither?
What is that common difference or ratio (or neither):

Answer 1

See below

Explanation:

Notice that each consecutive term gets multiplied by -2. As such, this is a geometric sequence with a common ratio of -2.