Airplane and radar station functions
An airplane is flying at a speed of 200 mi/h at an altitude of one mile and passes directly over a radar station at time t = 0.
(a) Express the horizontal distance d (in miles) that the plane has flown as a function of t.
d = 200t
ok, well that was easy
(b) Express the distance s between the plane and the radar station as a function of d.
ok, now I'm kinda unsure here, so I drew a couple of pictures.
(beautiful, I know)
When I look at this, I see triangles. One leg is constantly 1 while the other increases according to d = 200t, and the hypotenuse is what I'm going for.... or so I think.
so far so good.
and now for part C
(c) Use composition to express s as a function of t.
so, its like (but with different letters)?
I tried and it was deemed incorrect.