Latus rectum of the parabola y2−4y−2x−8=0 is
2
4
8
1
Given equation,
y2−4y−2x−8=0⇒(y−2)2=2(x+6)
∴ Length of latus rectum = 2.
The length of the latus-rectum of the parabola y2+8x−2y+17=0 is
The latus rectum of parabola y2=5x+4y+1 is