roblem 2: The graph below represents the amount of water, W, in gallons in a small swimming pool after a certain number of hours, t. 1800 1600 1400 1200 1000 800 600 400 200 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 a. Evaluate W (3.5). Interpret its meaning and include appropriate units. b. Determine the domain of the function W and explain what it represents. c. Determine the range of the function W and explain what it represents. d. Compute the average rate of change of W(t) and the intervals [2, 3], [3, 4], and [4, 5] and interpret your answers. Be sure to include appropriate units.