Question

determine o vértice da parabola y=-x^2 + 1/2x + 3/2

Answer 1

Resposta:

Xv=-b/2a

 -(1/2)/(2*(-1))

(1/2)/2

Xv=1/4

Yv=-Δ/4a

-(1/4-4*(-1)*3/2)/4(-1)

(1/4+2*3)/4

25/4/4

25/16