THINKING
A technician is to fire three rockets at a local fair.
•
Flight part of the Blue rocket is modelled by equation h = -2d2 + 16d - 24 were h represents the
height of the rocket in meters and d represents the horizontal distance in meters.
The Red rocket is fired 4 metres to the left of the starting point of the Blue rocket, and lands at the
same place. The maximum height of the Red rocket is 11m.
You are to assist the technician in designing a flight path for the Green rocket so that will be fired
from a starting point between the starting points of the Blue and the Red rockets, and will also land
at the same place.
The maximum height of the Green rocket must be in between maximum height of Blue and Red
rocket. .
You may use the grid to sketch parabolas but you must show your method algebraicaly.