A.4.17.1 Water in a Tank
A tank contained some water. The function w represents the relationship between t, time in minutes, and the amount of water in the tank in liters. The equation w(t)=80-2.5t defines this function.
1. Sketch a graph of the function. Be sure to label the axes.
2. Discuss with a partner: a. How is the water in the tank changing? Be as specific as possible. b. What does w(t) represent? Is w(t) the input or the output of this function?