Question 448513
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Hi
what is the vertex form for the equation 
y=x^2-2x-8
Note: the vertex form of a parabola, {{{y=a(x-h)^2 +k}}} where(h,k) is the vertex
y=x^2-2x -8   |Completing the square
y = [(x-1)^2 - 1] - 8
y = (x-1)^2 - 9