A. 10
B. 7/2
C. -12
D. -2
If (9,12) is one end of a double oridinate of the parabola y2 = 16x, then its equation is
the equation of the parabola whose axis is parallel to y –axis and passing through is (-3,1), (1,1) is
If 2x + y + a = 0 is a focal chord of the parbola y2 + 8x = 0
The locus of the point of intersection of two tangents to the parabola y2 = 4ax which make the θ1 and θ2 with the axis so that tan θ1 tanθ2 = k is
The length of the latus rectum of the parabola 3x2 – 9x + 5y – 2 = 0 is
The curve described parametrically by x=t2+t+1, y= t2-t+1 represents
The equation to the parabola having focus (-1,-1) and directrix 2x -3y +6 = 0 is
The angles between tangents to the parabola y2 = 4ax at the points where it intersects with the line x – y –a = 0 is
The sum of the slopes of the tangents to the parabola y2 = 8x drawn from the point (-2,3) is
The tangent to y2 = ax makes an angle 450 with x- axis. Then its point of contact is