2.1 Relations and Functions

Question 1

Set of pairs of input and output values.

Answer 1

Relation

Question 2

A relation in which each element of the domain is paired with exactly one element in the range.

Answer 2

Function

Question 3

set of all inputs, or x-coordinates of the ordered pairs.

Answer 3

Domain

Question 4

set of all outputs, or y-coordinates of the ordered pairs.

Answer 4

Range

Question 5

It links elements of the domain with corresponding elements of the range.

Answer 5

Mapping diagram

Question 6

use on the graph of a relation to tell whether the relation is a function.

Answer 6

Vertical-line test

Question 7

f(x) as “f of x” or “a function f of x”

Answer 7

function notation