Question 1060431
Same as if  {{{(x-0)=(1/36)(y-0)^2}}}  or  {{{36(x-0)=(y-0)^2}}}.



Not the full specific answer, but learn from these:
<a href="https://www.youtube.com/watch?v=M8LGsQMwwj4">derive equation of parabola given focus and directrix</a>
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<a href="https://www.youtube.com/watch?v=Wworlx39KfQ">derive equation of parabola given focus and directrix, if vertex is not at the origin</a>