Recent content by dillonwerd

I just noticed I posted this in the wrong section. Sorry about that...Go ahead and move it if necessary Mods.

I know this is probably really easy, but I can't get the answer. Use the definition of a parabola and the distance formula to find the equation of the parabola with focus (1,2) and directrix x=-1 I know the answer is x=(y-2)^2/4. Can anyone tell me how to get there? Sorry to waste your...

This is my first post here so I hope I put it in the proper place. Here's the basic info on the question. parabolic reflector (like a tv dish) has diameter of 10cm, focus is 2 cm from the vertex. Find the depth. Thanks in advance for an help. I've been stuck on this for a while! Getting...