SOLUTION: Find the equation of parabola, given that v(0,0), f( -2,0)

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Question 1119531: Find the equation of parabola, given that v(0,0), f( -2,0)
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


Given the vertex at (0,0) and the focus at (-2,0), the equation is of the form

x+=+%281%2F%284p%29%29y%5E2

where p is the directed distance from the vertex to the focus.

The directed distance from the vertex to the focus is -2; so the equation of the parabola is

x+=+%281%2F-8%29%28y%5E2%29

or

x+=+%28-1%2F8%29y%5E2