A fish tank is being filled with water. The graph below shows the relationship between the amount of water W (in liters) in the tank and the time T (in minutes) since the tank started being filled.

Question

Amount of water (liters)
W102030405060708090100T1234567890
Time (minutes)

(a)Write an equation to represent the relationship between W and T.


(b)Choose the correct statement to represent this relationship.

The fish tank is being filled with 1 liter of water per 10 minutes.
The fish tank is being filled with 20 liters of water per minute.
The fish tank is being filled with 10 liters of water per minute.
The fish tank is being filled with 1 liter of water per 20 minutes.

Answer 1

(a) The equation to represent the relationship between W (amount of water in liters) and T (time in minutes) is:

W = 10T

(b) The correct statement to represent this relationship is:

The fish tank is being filled with 10 liters of water per minute.