SOLUTION: A satellite dish which is parabolic in shape has the receiver at its focus. What is the best location of the reciever if the satellite dish is 6ft wide and 2ft deep?

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Question 1120655: A satellite dish which is parabolic in shape has the receiver at its focus. What is the best location of the reciever if the satellite dish is 6ft wide and 2ft deep?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Half the width is 3 feet. If vertex is origin and dish is concave upward,
Some points on the cross section are (0,0), (-3,2), and (3,2).
p, distance of focus from vertex in the concave space above vertex

4py=x%5E2
4p=x%5E2%2Fy
4p=3%5E2%2F2
4p=9%2F2
p=9%2F8
highlight%28p=1%261%2F8%29