2.1: Relations and Functions

Question 1

A ______ is a set of pairs of input and output values

Answer 1

Relation

Question 2

The___of a relation is the set of all inputs, or x-coordinates of the ordered pairs

Answer 2

Domain

Question 3

The _____of a relation is the set of all outputs, or y-coordinates of the ordered pairs

Answer 3

Range

Question 4

Another way to show a relation is to use a _______, which links elements of the domain with corresponding elements of the range

Answer 4

Mapping Diagram

Question 5

A ______ is a relation in which each element of the domain is paired exactly one element in the range

Answer 5

Function

Question 6

You can use the ________on the graph of a relation to tell whether the relation is a function

Answer 6

Vertical-Line Test

Question 7

You read the_______ f(x) as “f of x” of “a function f of x.”

Answer 7

Function Notation