1.

The directrix of the parabola \[{{x}^{2}}-4x-8y+12=0\] is  [Karnataka CET 2003]

A.            \[x=1\]                                      
B.            \[y=0\]
C.            \[x=-1\]                                     
D.            \[y=-1\]
Answer» E.


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