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a cross section of a parabolic satellite dish can be modeled by the equation y=1/48x^2. How far from the vertex of the cross section? Explain

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W0lf93
place vertex at (0,0) basic equation: x^2=4py p=distance from vertex to focus) y=at ends of parabolic cross section y = x^2/4p Given y= 1/48x^2 So, 1/48x^2=X*2/4p 1/4p = 1/48 4p = 48 p = 48/4 = 12 ft

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