A) \[y=1\]
B) \[y=-1\]
C) \[y=0\]
D) \[x=0\]
E) \[x=1\]
Correct Answer: C
Solution :
Given equation can be rewritten as \[{{x}^{2}}=-4(y+1)\] \[\Rightarrow \]\[{{X}^{2}}=-4Y,\]where\[X=x\]and\[y=y+1\] Equation of directrix is\[Y=1\] \[\therefore \] \[y+1=1\] \[\Rightarrow \] \[y=0\]You need to login to perform this action.
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