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Juscelip
@Juscelip
January 2020
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Determine as coordenadas (x,y) do vértice da parábola.
y= -x²+7x-10
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phq1910
Para determinar o vertice, vc precisa fazer pelo menos o Delta.
Delta = b²-4ac
Delta = 7²-4*(-1)*(-10)
Delta = 49-40
Delta = 9
As formular dos vertices:
Xv = -b/2a
Yv = -Delta/4a
Xv = -7/-2
Xv=3,5
Yv = -Delta/4a
Yv = -9/-4
Yv = 2,25
Vertice da Parábola é (3.5,2.25)
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Delta = b²-4ac
Delta = 7²-4*(-1)*(-10)
Delta = 49-40
Delta = 9
As formular dos vertices:
Xv = -b/2a
Yv = -Delta/4a
Xv = -7/-2
Xv=3,5
Yv = -Delta/4a
Yv = -9/-4
Yv = 2,25
Vertice da Parábola é (3.5,2.25)