The equation of the tangent at a point \[P(t)\] where ?t? is any parameter to the parabola \[{{y}^{2}}=4ax\], is [MNR 1983]

The equation of the tangent at a point \[P(t)\] where ?t? is any param

1.	The equation of the tangent at a point \[P(t)\] where ?t? is any parameter to the parabola \[{{y}^{2}}=4ax\], is [MNR 1983]
A.	\[yt=x+a{{t}^{2}}\]
B.	\[y=xt+a{{t}^{2}}\]
C.	\[y=xt+\frac{a}{t}\]
D.	\[y=tx\]
Answer» B. \[y=xt+a{{t}^{2}}\]

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The equation of the tangent at a point \[P(t)\] where ?t? is any parameter to the parabola \[{{y}^{2}}=4ax\], is [MNR 1983]

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