edward-reynolds_60c11851dc1e4
edward-reynolds_60c11851dc1e4
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As coordenadas do vértice corresponde a um Xv e um Yv Xv = -b/ 2a = -4/2.4= -1/2 Yv= -(delta)/4a = -(b^2-4ac)/4a= -(4^2-4.4.1)/4.4= -(16-16)/4.4 =0 Ponto do vértice (-1/2, 0) logo resposta letra A