A relation is a set of ordered pairs where each element from the first set is associated with an element from the second set. It describes how elements from two sets are connected.
5 Must Know Facts For Your Next Test
A relation can be represented as a set of ordered pairs, a table, or a graph.
The domain of a relation is the set of all possible input values (first elements).
The range of a relation is the set of all possible output values (second elements).
Not all relations are functions, but all functions are relations.
A relation where each input has exactly one output is called a function.