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Algebra
Question

Find the equation of the parabola with its focus a...

Find the equation of the parabola with its focus at \( ( 0 , - 4 ) \) and its directrix \( y = 4 . \) 

A) \( y = - 1 / 4 x ^ { 2 } \) 

B) \( y = 1 / 16 x ^ { 2 } \) 

C) \( y = - 1 / 16 x ^ { 2 } \) 

D) \( y = - 1 / 8 x ^ { 2 }\) 

Answer

C.\( y= - 1/16 x^2\)

Solution
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