# SOLUTION: can you please help me write the equation in standard form for the parabola with vertex (0,0) and the directrix y=-11

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 Click here to see ALL problems on Quadratic-relations-and-conic-sections Question 386517: can you please help me write the equation in standard form for the parabola with vertex (0,0) and the directrix y=-11Answer by ewatrrr(10682)   (Show Source): You can put this solution on YOUR website! ``` Hi, Note: for a parabola, 4p(y-k) = (x-h)^2 where (h,k) is the vertex and p the distance from the focus to the vertex. in this ex vertex is Pt(0,0) Directrix y = -11 tells us p = 11 as the directrix is the same distance from the vertex as is the focus. 4p(y-k) = (x-h)^2 4*11y = x^2 y = x^2/44 the standard form for this parabola ```