Find 2f (2) -39 (2) given f(2)= x2 + 2x - 1 and g(x) = 2x - 4
O 2x2 – 2x – 14
O-3x2 – 2x – 1
O 222 - 2.0 + 10
0 -3.rº – 2x - 7

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Tell whether the two rates form a proportion

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.

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