Dotted Functions Part 2

Student Warm Up

Elena filled up the tub and gave her dog a bath. Then she let the water out of the tub. 
  1. The graph shows the amount of water in the tub, in gallons, as a function of time, in minutes. Add labels to the graph to show this.
  2. When did she turn off the water faucet?
  3. How much water was in the tub when she bathed her dog?
  4. How long did it take for the tub to drain completely?
  5. At what rate did the faucet fill the tub?
  6. At what rate did the water drain from the tub?