Identifying If Tables and Mapping Diagrams Are Functions

What is the missing input number?

• 4

• 6

• 7

• 5

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)

Is the mapping diagram an example of a function?

• yes

• no

The mapping diagram is an example of a function.

• True

• False

Choose each ordered pair based on the mapping diagram.

• (0, 9)

• (9, 0)

• (4, -9)

• (8, 0)

• (12, 9)

Does the table represent a function?

• Yes

• No

Does the mapping represent a function?

• Yes

• No

Is the relation a function? Explain.

• Yes, the x-value 11 has two y-values paired with it.

• Yes, each x-value has only one y-value paired with it.

• No, the x-value 11 has two y-values paired with it.

• No, each x-value has only one y-value paired with it.

Does the following relation represent a function?

(1,5), (1,6), (1,7), (1,8), (1,9)

• Yes, there are no repeated x-values

• No, there are repeated x-values

The table represents the equation k = j - 20.

Use the equation to find the missing value.

• 34

• 27

• 41

• 38