nitenurselorraine nitenurselorraine

14-06-2017
Mathematics

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I need to graph a parabola. I need to find the vertex and a couple coordinates.
y=-x^2+2x-4

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ghanami ghanami

14-06-2017

hello :
y=-x²+2x-4
y = -(x²-2x)-4
y = - (x²-2x+1)+1-4
y = - (x-1)² -3
the vertex is : (1 , -3 )

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