conic-section

Question: The equation to a parabola which passes through the intersection of a straight line $x+y=0$ and the circle ${{x}^{2}}+{{y}^{2}}+4y=0$ is



1) ${{y}^{2}}=4x$
2) ${{y}^{2}}=x$
3) ${{y}^{2}}=2x$
4) None of these
Solution: Explanation: No Explanation
Parabola

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