Unit 5: Functions Review

Function W gives the weight of a dog, in Kilograms, when it is m months old. Which statement represents the meaning of the equation w(8)=5 in this situation?

• The dog weights 8 kilogram when it is 5 months old

• The dog weights 5 Kilogram when it is 8 months old

• The weight of the dog has been 8 kilograms for 5 months.

• The dog weights 5 kilograms when it was 8 years old.

Function f gives the distance of a ship from the port t seconds after leaving the dock. Distance is measured in meters.

Here is a graph that represents f.

Determine whether each statement in function notation could represent this situation.

A. f(30) = f(70)

• Yes

• No

2. Function f  gives the distance of a boat from the dock t seconds after leaving the dock. Distance is measured in meters. 

Here is a graph that represents f . Determine whether each statement in function notation could represent this situation. 

B. f(10)= 20

• Yes

• No

2. Function f  gives the distance of a boat from the dock t seconds after leaving the dock. Distance is measured in meters. 

Here is a graph that represents f . Determine whether each statement in function notation could represent this situation. 

C. f(90) < f (160)

• Yes

• No

2. Function f  gives the distance of a boat from the dock t seconds after leaving the dock. Distance is measured in meters. 

Here is a graph that represents f .

Determine whether each statement in function notation could represent this situation. 

D. f(t) =10, when t is 20

• Yes

• No

2. Function f gives the distance of a boat from the dock t seconds after leaving the dock. Distance is measured in meters. 

Here is a graph that represents f .

Determine whether each statement in function notation could represent this situation. 

E. f(0) = 0

• Yes

• No

2. Function f gives the distance of a boat from the dock t seconds after leaving the dock. Distance is measured in meters. 

Here is a graph that represents f.

Determine whether each statement in function notation could represent this situation. 

f(0) = 170

• Yes

• No

2. Function f  gives the distance of a boat from the dock t seconds after leaving

3. the dock. Distance is measured in meters. 

Here is a graph that represents f .

Determine whether each statement in function notation could represent this situation. 

f(170)= 0

• Yes

• No

3. A ball bounces several times after it is dropped. The graph shows the height of the ball over time.

Height is measured in meters and time is measured in seconds.

Determine whether each statement is true or false about the graph and the situation it represents.

A. The vertical intercept shows the time when the ball hits the ground.

• True

• False

3. A ball bounces several times after it is dropped. The graph shows the height of the ball over time.

Height is measured in meters and time is measured in seconds.

Determine whether each statement is true or false about the graph and the situation it represents.

B. The vertical intercept shows the initial height of the ball.

• True

• False