Answer:
Step-by-step explanation:
From the question we are told that
Altitude of Height 1.4miles
4miles west
a) From the question
on interval (-4,0)
The descent can be expressed in
therefore initial points is (-4 , 1.4).
final co-ordinate is given by (0,0) as its landing
Mathematically solving in above cubic equation
Generally in this case Slope of tangent at point of descent is zero.assuming flight was initially straight before descent
Mathematically solving above equations we have
Therefore having found a and b the Cubic equation is given as
b)descent at its greatest rate