A) \[{{x}^{2}}=4(y+4)\]
B) \[{{x}^{2}}=4(y-4)\]
C) \[{{y}^{2}}=4(x+4)\]
D) \[{{y}^{2}}=4(x-4)\]
Correct Answer: C
Solution :
Directrix \[=x+5=0\] Focus is (?3, 0) Þ \[2a=(-5+3)=2\]Þ \[a=1\] Vertex is \[\left( \frac{-3+(-5)}{2},\,0 \right)=(-4,\,0)\] Therefore, equation is \[{{(y-0)}^{2}}=4(x+4)\].You need to login to perform this action.
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