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.
Teach it
Where it is taught, with guided notes, practice, homework, an exit ticket and an interactive Teacher Deck.
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.