The height of water in a bathtub, w, is a function of time, t. Let P represent this function. Height is measured in inches and time in minutes.

Match each statement in function notation with a description.
P(4)=10
The bathtub starts out with no water.
P(20)=0
The height of the water is 10 inches after 4 minutes.
P(0)=0
After 10 minutes, the height of the water is 4 inches.
P(10)=4
After 20 minutes, the bathtub is empty.