In 1976 the population density of a country was 55 people per square mile, and in 2001 it was 75 people per square mile. use a linear function to estimate when the population density reached 90 people per square mile. the population density will reach 90 people per square mile in the year nothing. (round to the nearest whole number as needed.)

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.