Accumulation Functions, Definite Intervals, Applied Contexts Practice Test

The change in time required to add one liter between $t=2$ and $t=6$, in minutes per liter

The total number of liters added to the tank from $t=2$ to $t=6$

The total filling rate accumulated from $t=2$ to $t=6$, in liters per minute

The instantaneous amount of water in the tank at $t=6$, in liters

The average filling rate of the tank from $t=2$ to $t=6$, in liters per minute