An architect for a golf course wants to plan a sand trap that passes between a tree and a cart path?Using these as the focus and directrix, how can the architect plan a parabolic sand trap that will be equidistant from the tree and the cart path. Describe your method in full sentences. I know the tree is the focus and the path is the directrix, but how to I plan a path equidistant between the two?
well, isn't a parabola the set of points equidistant from the focus and the directrix?
Yes, but what would an equation or that situation look like?
|dw:1389560537586:dw|
now the first point is the one on the perpendicular line between directrix and focus, exactly halfway between them (equidistant)
|dw:1389560595701:dw| agreed?
have to admit I'm a bit fuzzy on what this sand trap is supposed to look like!
are you sure you copied the problem correctly? if the edge of the sand trap was the directrix, and the tree was the focus, we could snake a parabolic path equidistant from both...
Im pretty sure I did
|dw:1389560876643:dw|
I suppose that could be the centerline of the sand trap, and it extends a fixed distance in either direction from the centerline: |dw:1389561072222:dw|
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