A satellite dish is shown. Since radio signals (parallel to the axis) will bounce off the surface of the dish to the focus, the receiver should be placed at the focus. How far should the receiver be from the vertex, if the dish is 12 ft across, and 4.5 ft deep at the vertex?

7. What conic section is referred?

8. What is the formula to be used?

9. What are the given?

10. What is the coordinate of the focus?

11. The distance from the vertex to the receivers refers to ordinate or abscissa?

12. How far should the receiver be from the vertex?​