Mathematics
orange7609
2016-09-24 19:07:09
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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YaelNierman
2016-09-24 19:44:18

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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