If the x- intercept of a focal chord of the parabola y^2=8x+4y+4 is 3, then the length of this chord is equal to ______

Question

Accepted Answer

Correct answer: 16. (16) y^2=8x+4y+4 (y-2)^2-8(x+1) y^2=4 ax a=2 ,x=x+1 ,Y=y-2 focus (1 ,2 ) y-2=m (x-1 ) Put (3 ,0 ) in the above line m=-1 Length of focal chord =16

$If the x - intercept of a focal chord of the parabola y^{2} = 8 x + 4 y + 4 is 3, then the length of this chord is equal to ______$

Solution

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