6 The table below shows the height in feet h t of a hot air balloon and the number of minutes t the balloon is in the air Time min Height ft 2 5 7 10 12 64 168 222 318 369 The function h t 30 5t 8 7 can be used to model this data table Explain the meaning of the slope in the context of the problem Explain the meaning of the y intercept in the context of the problem