Algebra 1 · Functions & Sequences
Arithmetic Sequence
Algebra 1 · Functions & Sequences
Definition
An arithmetic sequence is a number pattern where each term increases by a constant common difference.
Examples
- 2, 5, 8, 11, ... adds 3 each time.
- 20, 16, 12, ... adds -4 each time.
Key rule
Find the next term by adding the common difference.
Memory hook
Arithmetic = add the same amount every step.