Quadratic equation?

Flower9

New member
Joined
Feb 5, 2006
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14
The path of a platform diver can be described by the equation y=-2x^2+15x+6, where x is the horizontal distance in meters of the diver from the edge of the platform and y is the height of the diver in meters above the surface of the water. In horizontal distance, about how far in front of the platform will the diver enter the water?

A) 2 meters
B) 3 meters
C) 8 meters
D) 15 meters

Would I use the quadratic equation? could someone help? THANKS SO MUCH! :lol:
 
Since that is all the information you have, I should hope so.

Make a quick drawing.
Think about it.
Reason it out.
Who is y = 0, the platform or the water?
 
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