Question

Really need some help on this question :L
Pls help for a medal and fan

Answer 1

Regan is trying to find the equation of a quadratic that has affocus of (-2,5) and a directrix of y=13. describe to regan your preferred method for deriving the equation. make sure you use regans situation as a model to help her understand

Answer 2

I found this resource:
http://hotmath.com/hotmath_help/topics/finding-the-equation-of-a-parabola-given-focus-and-directrix.html

Answer 3

ok let me check it out c:

Answer 4

um its confusing haha sorry i really suck at math as you can tell :/

Answer 5

Sorry. I haven't done any of this before. I'll try to work through this with you.

Answer 6

ok thank you so much :/

Answer 7

can someone help me?
http://openstudy.com/study#/groups/Literature

Answer 8

If the focus of a parabola is (-2, 5) and the directrix is y = 13, find the equation of the parabola.

Let ( x0 , y0 ) be any point on the parabola. Find the distance between (x0 , y0) and the focus. Then find the distance between (x0 , y0) and directrix. Equate these two distance equations and the simplified equation in x0 and y0 is equation of the parabola.

The distance between (x0 , y0) and (-2, 5) is \[\sqrt{(x_0-(-2))^2+(y_0-5)^2}\]

Answer 9

okk