The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled. у 500 50 1400 350 300 Water (gallons) 200 150 100 50 X 1 2 3 6 7 00 9 4 5 Time (hours) The total capacity of the water tank is gallons, and the rate of change is gallons per hour.
