Question

a radio telescope has a parabolic surface. If the telescope is 1m deep and 12m wide, how far is the focus from the vertex

Answer 1

The points (-6,1), (0,0), and (6,1) are on the parabola with the equation of y = ¹ ̷ ₃₆x².

Since a = 1/36, then 1/36 = 1/4p, so p = 9

The focus is 9 meters from the vertex. <==ANSWER

i hope that helps!! :-)

Answer 2

Thank you very much!

Answer 3

no problem