Key learning points

1. Identifying a common ratio between each term can help us identify a geometric sequence.
2. Divide each term by its previous consecutive term, if the results are all the same, this is the common ratio.
3. If there is a common ratio, then the sequence is geometric.

Keywords

• Common ratio - A common ratio is a key feature of a geometric sequence. The constant multiplier between successive terms is called the common ratio.

Common misconception