Identifying Functions Mapping Diagrams

• 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.

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.

Choose the following that are ordered pairs from the mapping diagram. Choose all that apply.

• (-2, 5)

• (-2, 15)

• (0, 10)

• (2, 5)

• (4, 20)

Choose each ordered pair based on the mapping diagram.

• (0, 9)

• (9, 0)

• (4, -9)

• (8, 0)

• (12, 9)

Which list of ordered pairs matches the mapping diagram?

• {(7, -3), (7, -2), (14, -1), (14, 0)}

• {(-3, 7), (-2, 7), (-1, 14), (0, 14)}

The mapping diagram is an example of a function.

• True

• False

What is the missing input number?

• 4

• 6

• 7

• 5

Is the mapping diagram an example of a function?

• yes

• no

The mapping diagram is a function.

• True

• False

• A

• B

• C

• D