SOLUTION: what are the coordinates of the vertex of f(x)=-3x2+12x-9?

Question 919447: what are the coordinates of the vertex of f(x)=-3x2+12x-9?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
the vertex form of a Parabola opening up(a>0) or down(a<0),
the vertex form of a Parabola opening up(a>0) or down(a<0),
. V(h, k)
Completing the Square to Obtain the Vertex Form:
y = ax^2 + bx + c = 0
f(x)=-3x^2+12x-9 = 0 2 the x-value for the Vertex
y = -3(x - 2)^2 + 12 -9 = 0 = 12
y = -3x - 2)^2 +3= 0
y = -3(x - 2)^2 + 3 = 0
V(2,3)

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