If one end of a focal chord \( A B \) of the parabola \( \mathrm{P}...

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If one end of a focal chord \( A B \) of the parabola
\( \mathrm{P} \) \( y^{2}=8 x \) is at \( A\left(\frac{1}{2},-2\right) \), then the equation of the

W tangent to it at \( B \) is:
(1) \( 2 x-y-24=0 \)
(2) \( x-2 y+8=0 \)
(3) \( x+2 y+8=0 \)
(4) \( 2 x+y-24=0 \)
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