Hi



endpoints of the latus rectum of a parabola are (5,k), and (-5,k).

vertex of the parabola is at the origin, and the parabola opens downward

the vertex form of a Parabola opening up(a>0) or down(a<0),  

where(h,k) is the vertex  and  x = h  is the Line of Symmetry

The standard form is , where  the focus is (h,k + p)

,  

4p = 10, (length of latus rectum is 4p   Focal point is ( 0,-10/4 )  





 

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