Sequences: A list of numbers or objects in a special order.
Position: where a term is located in a sequence
Term: In Algebra a term is either a single number or variable, or numbers and variables multiplied together.
Ascending: Arranged from smallest to largest, increasing
Descending: Arranged from largest to smallest, decreasing
Linear Sequences: A linear sequence goes from one term to the next by always adding (or subtracting) the same value)
Non-Linear: The difference between terms increases or decreases in different amounts.