2.1: Relations and Functions Flashcards
1
Q
Relation
A
a set of pairs of input and output values.
2
Q
Domain
A
a relation is the set of all inputs, or x-coordinates of the ordered pairs.
3
Q
Range
A
a relation is the set of all outputs, or y-coordinates of the ordered pairs.
4
Q
Mapping Diagram
A
elements of the domain with corresponding elements of the range.
5
Q
Function
A
relation in which each element of the domain is paired with exactly one element in range.
6
Q
Vertical-Line Test
A
on the graph of a relation to tell whether the relation is a function.
7
Q
Function Notation
A
f(x) as “f of x” or “a function f of x”
