Algebra 1 · Functions & Sequences
Common Difference
Algebra 1 · Functions & Sequences
Definition
The common difference is the fixed amount added to each term to get the next in an arithmetic sequence.
Examples
- In 3, 7, 11, 15, the common difference is 4.
- In 10, 7, 4, 1, the common difference is −3.
Key rule
Subtract any term from the one after it to find it.
Memory hook
Common difference − the steady step you add.