Algebra 1 · Functions & Sequences
Relation
Algebra 1 · Functions & Sequences
Definition
A relation is any set of ordered pairs that pairs input values with output values.
Teach it
Where it is taught, with guided notes, practice, homework, an exit ticket and an interactive Teacher Deck.
Examples
- {(1,2),(3,4),(5,6)} is a relation.
- A relation may repeat inputs, unlike a function.
Key rule
Every function is a relation, but not every relation is a function.
Memory hook
Relation just pairs things − no one-output rule required.