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Question 306946:  i have my final coming up and i need help on how to solve this problem. I don't understand it what so ever, please state the steps. 
QUESTION: write the equation for the conic section in standard for:  
Parabola with vertex at the origin and a directrix y=5. Give the coordinates of the focus. 
 Answer by richwmiller(17219)      (Show Source): 
You can  put this solution on YOUR website! Obviously you have to work backwards from the vertex (0,0) and the directrix y=5 
And we have two questions : 
What is the equation of the conic section? 
What is the focus? 
What conic sections have one focus, vertex and directrix? 
parabola 
the parabola y=x^2 has vertex (0,0) 
y=-x^2/20 
focus =(0,-5) 
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