Mapping a Function

Is this a function?

• Function

• Not a Function

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)

The mapping diagram is a function.

• True

• False

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

Is the mapping diagram an example of a function?

• yes

• no

Choose each ordered pair based on the mapping diagram.

• (0, 9)

• (9, 0)

• (4, -9)

• (8, 0)

• (12, 9)

normal pressure at sea level is 1 atmosphere of pressure (1 ATM). As you dive below sea level, the pressure changes. The mapping diagram represents the pressures at different depths.

Based on the graph, what would the output pressure be for 50 m?

• 6 ATM

• 5 ATM

• 7 ATM

• Need more information to determine the answer.

Is this mapping a function or not a function? 

• Function

• Not a Function

How can you determine if a table or ordered pairs represents a function?

• for every y-value there is only one x-value

• for every x-value there is only one y-value

• vertical line test

• for every x-value there is more than one y-value