2.1 Relations and Functions Flashcards
1
Q
Relation
A
is a set of pairs of input and output values, you can write a relation as a set of ordered pairs.
2
Q
Domain
A
a relation is the set of all inputs, or x-coordinates of the ordered pair
3
Q
Range
A
a relation is the set of all outputs, or y-coordinates of the ordered pairs
4
Q
Mapping Diagram
A
another way to show a relation is to use the mapping diagram, which links elements of the domain with corresponding, elements of the range
5
Q
Function
A
a relation in which each element of the domain is paired with exactly one element in the range
6
Q
Vertical Line Test
A
on a 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
