Functions from Mapping Diagrams

The mapping diagram is an example of a function.

• True

• False

What is the missing input number?

• 4

• 6

• 7

• 5

What is the missing output number?

• -17

• 17

• -15

• -20

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.

When x = 2, what is the value of y?

• 10

• 12

• 14

Find x if h(x) = 23

**When h(x) = 23, what is x?

• -1

• -2

• 23

f(3)

**When x = 3, what is y?

• 5

• 7

• 9

When y = 9, what is x?

• 3

• 6

• 12

When x = 0, what is y?

• -3

• 0

• 1

Find h(-1)

**When x = -1, what is h(x)?

• -3

• 15

• 4