SOLUTION: FIND THE EQUATION OF THE PARABOLA WITH THE GIVEN FOCUS AND DIRECTRIX.
focus (-4,5) directrix y = 4
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Question 316174: FIND THE EQUATION OF THE PARABOLA WITH THE GIVEN FOCUS AND DIRECTRIX.
focus (-4,5) directrix y = 4
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
The y coordinate of the vertex is the midpoint of the line connecting the focus and perpendicular to the directrix.
Vy= (5+4)/2=4.5
Vertex:(-4,4.5)
Using the vertex form,
where is any non-zero constant.
Shown above are in red and in green.
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