I'm having difficulty with this question. All help is appreciated.(adsbygoogle = window.adsbygoogle || []).push({});

*The cross section of television antenna dish is a parabola and the receiver is located at the focus.

A. If the receiver is located 5 feet above the vertex, assume the vertex is the origin, find an equation for the cross section of the dish.

Okay, I know the vertex is 0,0. The focus is 0, 5. The equation is x^2=4ay.

I don't know where to go from there, or what equation is needed to find the cross section.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Parabolas math problem

**Physics Forums | Science Articles, Homework Help, Discussion**