SOLUTION: 8) The cross section of a large telescope having a diameter of 520 feet and a maximum depth of 55 feet. What is the equation of the parabola? A){{{y=11/52)x^2}}}x^2 B)

Algebra ->  Quadratic-relations-and-conic-sections -> SOLUTION: 8) The cross section of a large telescope having a diameter of 520 feet and a maximum depth of 55 feet. What is the equation of the parabola? A){{{y=11/52)x^2}}}x^2 B)      Log On


   

Question 34986: 8) The cross section of a large telescope having a diameter of 520 feet and a maximum depth of 55 feet. What is the equation of the parabola?
A)y=11%2F52%29x%5E2x^2
B)y=11%2F13520x^2
C)Not enough information
D)y=11%2F6760x^2
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Draw the picture, putting the vertex at (0,0)
Two other points on the parabola are (-260,55)
and (260,55).
If you check the points (+-260,55) in the multiple
choice answers you will see that "B" is the correct
equation.
Cheers
Stan H.