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Willian1403oliv
@Willian1403oliv
January 2020
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1) Sobre a função y= -x2-5+9 julgue certo ou errado
( ) Seu grafico e uma parabola de concavidade para baixo
( ) Seu Grafico não passa pela origem
( ) Ela Admit uma raiz real
( ) Ela possui um ponto de minimo
2) Determine se existir os zeros da função y=x2-9
3) Obtenha os vértice da função f(x)=-x2+2x
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giumartos
1. V V F V 2. X2=9 X=3 ou x=-3 3. Vértice: Xv, Yv= -b/2a, delta/4a = -2/ -2, 4/-4 = 1,-1
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