5. (9) letf- , 3), (-1, 1), (0, 0), (1,-1), (2,-3)) and let g- , 1), (-1, -2), (0, 2), (2, 2), (3, 1)j. find: a. (g f (0) c. (f ° g)(2)

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.