Functions and Mapping Diagrams

• Function
• Not a Function

• It is a function because each x has only one y.
• It's not a function because an x has multiple y's.
• It's not a function because a y has multiple x's.
• It is a function because each y has only one x.

• It is a function because each x has only one y.
• It's not a function because an x has multiple y's.
• It's not a function because a y has multiple x's.
• It is a function because each y has only one x.

• It is a function because each x has only one y.
• It's not a function because an x has multiple y's.
• It's not a function because a y has multiple x's.
• It is a function because each y has only one x.

Given the sets of ordered pairs, determine if they are functions or relations.

• A

  Both are functions

• B

  Both are Relations

• C

  f(x) is a function

• D

  g(x) is a function

Which relations are functions?

• A and D

• D

• A and G

• G

Given the table, which of the following equations correctly represents the function?

• A

• B

• C

• D

Is it a function?

• yes; each output has exactly one input.

• yes; each input has exactly one output.

• no; one input cannot have more/less than one output.

• no; one output cannot come from two input.

Level 1 Find the missing OUTPUT value.

Tags

function

All of the y values or outputs are called what?

• Domain

• Range

• Relation

• Function