Unit 2 – Quadratics
Math 2200
21
Applications of quadratic functions in Standard Form
Quadratic Function Given representing Quadratic Trajectory
Ex. A missile is shot into the air
h(t)
from a ship. The height of
the missile above sea level,
2
h(t) = –4.9t
+ 39.2t + 4
in metres, t seconds after
being shot approximated
by
2
h(t) = –4.9t
+ 39.2t + 4
t
Algebraically determine:
(i)
the initial height
(ii)
The height at 1.5 seconds
(iii)
the time at which the maximum height occurs.
(vi)
the maximum height attained by the rocket