SOLUTION: Hello, (THIS IS VERY URGENT) I'm not sure how to figure out this problem. It has to do with a quadratic equation and parabola. Question: 1. A home satellite dish is 56cm across

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Hello, (THIS IS VERY URGENT) I'm not sure how to figure out this problem. It has to do with a quadratic equation and parabola. Question: 1. A home satellite dish is 56cm across      Log On


   



Question 876620: Hello, (THIS IS VERY URGENT)
I'm not sure how to figure out this problem. It has to do with a quadratic equation and parabola.
Question:
1. A home satellite dish is 56cm across and 7cm deep. The cross-section is parabolic in shape.
a. What quadratic function describes the shape of the cross-section of this satellite dish?
b.To the nearest tenth of a centimeter, how deep is the dish 16cm from the edge?
I'm pretty sure there is some kind of formula you'd use to figure this out but I don't know what it is.
Thanks In Advance

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
y = (1/112)x^2
2p = 56, p = 28 a = 1/(4p)