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Find the coordinates of the focus, axis ...

Find the coordinates of the focus, axis of the parabola, the equation of the directrix and the length of the latus rectum.`y^2=-8x`

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From the question we get, equation of the parabola `y^2=-4ax`
since the coefficient of `x` is negative, the curve is open towards left
coordinates of focus is `(-a,0)` ...
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