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A parabola touches the coordinate axes a...

A parabola touches the coordinate axes at `(25/3, 0)` and `(0, 25/4)`. Equation of directrix of parabola is : (A) `x+2y=0` (B) `2x+y=0` (C) `3x+4y=0` (D) `4x+3y=0`

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