Introduction to Functions Vocabulary

All functions must...

• never have repeating y-values

• never have repeating x-values

• show a relationship between x- and y-values

• have a y-value for every one x-value

A function can be shown using...

• graphs

• input output tables

• arrow charts

• ordered pairs

A relation is a set of ____________________ that are related.

• ordered pairs

• x-values only

• y-values only

• x and y values

The __________________is the set of all the y-values.

• relation

• range

• domain

• ordered pairs

The domain is the set of all...

• y-values

• ordered pairs

• x-values

• coordinates

In the relation:{ (2,6), (4, 9), (6, 12) }

Which numbers make up the domain?

• 2

• 6

• 9

• 4

• 12

In the relation:{ (2,6), (4, 9), (6, 12) }

Which numbers make up the range?

• 2

• 6

• 9

• 4

• 12

The set of all x-values could be described using which three words?

• domain

• range

• input

• output

• x-coordinates

The set of all y-values could be described using which three words?

• domain

• range

• input

• output

• y-coordinates

The variable that is graphed on the y-axis is the...

• independent variable

• dependent variable