Juan is filling a tank. The graph shows the amount of water in liters) in the tank versus time (in minutes). 800-
(a) What is the amount of water in the tank at 0 minutes?
720
liters
640
560
(b) Choose the statement that best describes how the time and
amount of water are related. Then fill in the blank.
480
400
Amount
of water
(liters)
O
As time increases, the amount of water in the tank
decreases.
320.
2401
At what rate is the amount of water decreasing?
160
80
liters per minute
As time increases, the amount of water in the tank
increases
Time (minutes)
At what rate is the amount of water increasing?
liters per minute