SOLUTION: A satelite dish has a shape called a paraboloid, where each cross section is a parabola. Since radio signals (parallel to the axis) will bounce off the surface of the dish to the f

Question 1119578: A satelite dish has a shape called a paraboloid, where each cross section is a parabola. Since radio signals (parallel to the axis) will bounce off the surface of the dish to the focus, the receiver be placed at the focus. How far should the receiver be from the vertex, if the dish is 10 ft across, and 4 ft deep ? Round o your answer to 2 decimal places.

thank youuu
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
Put the parabola cross section description onto a cartesian plane system with vertex at origin and expect focus to be above the vertex. You know three points.
(0,0), (5,4), and (-5,4).

If p is how far focus is from vertex, then
.

Receiver should be feet or 1 foot 6 inches and inch from the vertex.
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