Find the equation of the directrix of the parabola $x = -\frac{1}{6} y^2.$
Question:
Find the equation of the directrix of the parabola $x = -\frac{1}{6} y^2.$
Answer:
Let's think step by step.

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x = \frac{3}{2}
Find the equation of the directrix of the parabola $x = -\frac{1}{6} y^2.$
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