Justify reasoning a frustum of a pyramid is a part of the pyramid with

two parallel bases. the lateral faces of the frustum are trapezoids. use the

area formula for a trapezoid to derive a formula for the lateral area of a

frustum of a regular square pyramid with base edge lengths b, and b, and

slant height 2. show all of your steps.

b2

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.