Parabola:
i) Find at least three real life application pictures representing the parabola.
- Roller Coaster.
- Eiffel Tower.
- The reflection from a flashlight.
- McDonalds logo.
ii) To hear what athletes are saying on the field or
on the course, sports reporters use microphones
with parabolic shields to concentrate the sound
at a microphone. For optimum audio reception, the microphone
should be placed at the focus of this parabola.
Determine the coordinates of the focus, then
write the equation of the parabola. (Hint: Write an equation for a parabola based
on ordered pairs.)
vertex (0,0)
the point (0.75,2.5) belong to the graph. direction: horizontal right find a: 0.75/2.25^2=a(2.5)^2+0/2.25^2 a= 0.12 the equation will be: x=0.12y^2 |