SOLUTION: Find the standard form of the parabola with the given characteristics. directrix: x=4 Vertex: (7,-2) I think the answer is (y+2)2=12(x-7)

Algebra ->  Quadratic-relations-and-conic-sections -> SOLUTION: Find the standard form of the parabola with the given characteristics. directrix: x=4 Vertex: (7,-2) I think the answer is (y+2)2=12(x-7)      Log On


   

Question 429642: Find the standard form of the parabola with the given characteristics.
directrix: x=4 Vertex: (7,-2)
I think the answer is (y+2)2=12(x-7)
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi, You are exactly correct!

The standard form (opening rt or left) is %28y+-k%29%5E2+=+4p%28x+-h%29, where  the focus is (h,k + p) 

Directrix x = 4  Vertex: (7,-2) then p = 3  

%28y%2B2%29%5E2+=+12%28x+-7%29