Question

The table shows the linear relationship between the elevation in feet of an airplane as it descends and the number of minutes.


Num of mins | Elevation (ft)
2 | 29,000
4 | 26,000
7 | 21,500
12 | 14,000


What is the rate of change of the elevation of the airplane with respect to the number of minutes since the plane started its descent?

(1 point)

900 ft/min

1,500 ft/min

1,200 ft/min

1,800 ft/min

QUESTION 2:
what is the linear regression for the table above?(1 point)

Answer 1

Rate of change = -1500 ft/min (the plane loses 1500 ft each minute).

Linear model (elevation E in ft, time t in minutes):
E = -1500 t + 32000