The tangent at any point P on `y^2 = 4x` meets x-axis at Q, then locus of mid point of PQ will be

A tangent to the parabola y^(2)=4ax meets axes at A and B .Then the locus of mid-point of line AB is

The tangent at any point P onthe parabola y^(2)=4ax intersects the y-axis at Q. Then tangent to the circumcircle of triangle PQS(S is the focus) at Q is a line parallel to x-axis y-axis a line parallel to y-axis (d) none of these

A curve 'C' with negative slope through the point(0,1) lies in the I Quadrant. The tangent at any point 'P' on it meets the x-axis at 'Q'. Such that PQ=1 . Then The curve in parametric form is

A curve 'C' with negative slope through the point(0,1) lies in the I Quadrant. The tangent at any point 'P' on it meets the x-axis at 'Q'. Such that PQ=1 . Then The area bounded by 'C' and the co-ordinate axes is

A curve 'C' with negative slope through the point(0,1) lies in the I Quadrant. The tangent at any point 'P' on it meets the x-axis at 'Q'. Such that PQ=1 . Then The orthogonal trajectories of 'C' are