Question 981054
A derivation for a parabola equation with horizontal axis of symmetry can be shown as  {{{4py=x^2}}}.  If moved from standard position, the equation is of a form,  {{{4p(y-k)=(x-h)^2}}} with vertex  (h,k).  The distance from vertex to either focus or directrix is |p|.


Review the formal descriptive definition of a parabola and associated terminology.



-
The vertex for your parabola is (4,-3) and the parabola is concave upward.