A large water tank is being drained at a constant rate. The volume of water, , in gallons, remaining in the tank after minutes is given by the equation . What is the best interpretation of the number 800 in this context?
The rate at which water is drained from the tank, in gallons per minute.
The total time it takes to drain 800 gallons from the tank.
The initial volume of water in the tank, in gallons.
The volume of water remaining in the tank after 10 minutes.
