If the line \[lx+my+n=0\] is a tangent to the parabola \[{{y}^{2}}=4ax\], then locus of its point of contact is [RPET 1997]

If the line \[lx+my+n=0\] is a tangent to the parabola \[{{y}^{2}}=4ax

1.	If the line \[lx+my+n=0\] is a tangent to the parabola \[{{y}^{2}}=4ax\], then locus of its point of contact is [RPET 1997]
A.	A straight line
B.	A circle
C.	A parabola
D.	Two straight lines
Answer» D. Two straight lines

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If the line \[lx+my+n=0\] is a tangent to the parabola \[{{y}^{2}}=4ax\], then locus of its point of contact is [RPET 1997]

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