You can put this solution on YOUR website!
Gerald hit his golfball down the fairway.
The path the ball followed was parabolic in the shape with the relationship:
I think the equation should be
(What you have, is not a parabola)
Where h is the height above the ground of the golf ball when it is a horizontal distance d from him.
Both h and d are in meters. How far from Gerald did the golf ball land?
When the ball lands h = 0, therefore, we can write it:
d^2 + 2d = 0
multiply equation by -30, gets rid of the fraction & changes the signs & you have:
d^2 - 60d = 0
Factor out d
d(d - 60) = 0
d = 0 (when the ball is hit)
d = 60, when the ball lands
Looks like this: