Hi
y^2= -3x Parabola opening to the left with V(0,0) Line of symmetry the y=axix
4p = -3 p = (-3/4)
Standard Form of an Equation of a Circle is
where Pt(h,k) is the center and r is the radius
Standard Form of an Equation of an Ellipse is 
where Pt(h,k) is the center and a and b are the respective vertices distances from center.
Standard Form of an Equation of an Hyperbola is
where Pt(h,k) is a center with vertices 'a' units right and left of center.
Standard Form of an Equation of an Hyperbola opening up and down is:
where Pt(h,k) is a center with vertices 'b' units up and down from center.
Using the vertex form of a parabola opening up or down, 
where(h,k) is the vertex
The standard form is
, where the focus is (h,k + p)