If the line `lx +my+n=0` is a tangent to the parabola `y^2=4ax` , then locus of its point of contact is:

If lx + my + n = 0 is tangent to the parabola x^(2)=y , them

If lx + my + n = 0 is tangent to the parabola x^(2)=y , them

The line lx+my+n=0 is a normal to the parabola y^(2)=4ax if

The line lx+my+n=0 is a normal to the parabola y^2 = 4ax if

Find the condition for the straight line lx+my+n=0 to be a tangent to the parabola y^(2)=4ax and find the coordinates of the point of contact.

The st line lx+my+n=0 will be a tangent to the parabola y^(2)=4bx if

If the straight line lx + my=1 is a normal to the parabola y^(2)=4ax , then-

The line 1x+my+n=0 is a normal to the parabola y^(2)=4ax if :

The pole of the line lx+my+n=0 with respect to the parabola y^(2)=4ax, is