The graph below depicts the range of a water stream as it flows horizontallly out from a uniform cylinder. Construct a good straight-line model for this data and use your model to determine the range of the flow at t = 67 sec. Determine also the time at which the range is 18 cm. The x axis is marked in units of 8 sec and the y axis in units of 25 cm, both starting at (0,0).