A passenger jet descends toward an airport. The graph models the descent of the
plane.

Answer:
D) -1200 ft
Step-by-step explanation:
The time passes through (0,20) and (5,14)
So, rate of descent= slope= 14-20/5-0= -6/5
so, -6/5 × 1000ft
= -1200 ft
So, rate of descent= -1200ft.
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