Geometric Sequence

• A sequence with a constant ratio between successive terms
• The ratio tells us how to get from one term to another
• Each term is found by multiplying the previous term by a constant
• It's called a geometric series because it is like increasing dimensions in geometry

Formula

• $ar^{n - 1}$
• $a$ is the first term
• $r$ is the common ratio
• $n$ is the term you are looking for