2.1: Relations and Functions Flashcards
1
Q
relation
A
set of pairs of input and output values
2
Q
domain
A
set of all inputs (x coordinates) of the ordered pairs
3
Q
range
A
set of all outputs (y coordinates) of the ordered pairs
4
Q
mapping diagram
A
links 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 the range
6
Q
vertical-line test
A
use on the graph of relation to tell whether the relation is the function
7
Q
function notation
A
read as f(x) or “f of x”. when the value of x is 3, it becomes f(3) read as “f of 3”. represents the value of the function at x=3
