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I assume the equation is -5(x-2)2 - 1 = y
Let's add one to both sides:
-5(x-2)2 = y + 1
This is the equation of a parabola in "vertex" form:
a(x-h)2 = (y-k)
a)  The Vertex is located at the point (h,k)
b)  The line of symmetry is y = h
c)  The parabola opens upward if a>0, down if a<0