Mal is filling a tank. The graph shows the amount of water (In liters) in the tank versus time (in minutes). 500
450+
400+
(a) What is the amount of water in the tank at 0 minutes?
1 liters
(b) Choose the statement that best describes how the time and
amount of water are related. Then fill in the blank.
As time increases, the amount of water in the tank
decreases.
350+
300
250+
Amount
of water
(liters)
200-
150-1
At what rate is the amount of water decreasing?
100
50
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