2.1 Relations & Functions

Question 1

Vertical line test

Answer 1

on the graph of a relation to tell weather the relation is a function

Question 2

Relation

Answer 2

set of pairs of input and output values

Question 3

Domain

Answer 3

of a relation is the set of all inputs or x-cordinates of the ordered pairs

Question 4

Range

Answer 4

of a relation is the set of all outputs or y-cordinates of the ordered pairs

Question 5

Function

Answer 5

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

Question 6

Function notation

Answer 6

(f)x