The line \[y=mx+1\] is a tangent to the parabola \[{{y}^{2}}=4x\], if [MNR 1990; Kurukshetra CEE 1998; DCE 2000; Pb. CET 2004]

The line \[y=mx+1\] is a tangent to the parabola \[{{y}^{2}}=4x\], if

1.	The line \[y=mx+1\] is a tangent to the parabola \[{{y}^{2}}=4x\], if [MNR 1990; Kurukshetra CEE 1998; DCE 2000; Pb. CET 2004]
A.	\[m=1\]
B.	\[m=2\]
C.	\[m=4\]
D.	\[m=3\]
Answer» B. \[m=2\]

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The line \[y=mx+1\] is a tangent to the parabola \[{{y}^{2}}=4x\], if [MNR 1990; Kurukshetra CEE 1998; DCE 2000; Pb. CET 2004]

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