Two large water tanks are filling with water. Tank A is not filled at a constant rate, and the relationship between its volume of water and time is graphed on each set of axes. Tank B is filled at a constant rate of 1/2 liters per minute. The relationship between its volume of water and time can be described by the equation v=1/2t, where t is the time in minutes and v is the total volume in liters of water in the tank.
2. Answer the following questions and say which graph you used to find your answer.
a. After 30 seconds, which tank has the most water?
b. At approximately what times do both tanks have the same amount of water?
c. At approximately what times do both tanks contain 1 liter of water? 20 liters?