Question 879876
Handling this question might be easier using the already derived equation for the simpler model of x=y^2.  Taking this simple form as 4x=y^2 to get directrix and focus depends on knowing how the equation was formed from knowing directrix and focus.


{{{4px=y^2}}} is an equation of a parabola with p being distance from vertex to directrix and distance from vertex to focus.  Your given equation is {{{4*1*x=y^2}}}.  The parabola is horizontal with a vertex (0,0).  Focus is (0,1) and directrix is {{{x=-1}}}.