Question

Calcule as coordenadas do vértice da função y= x² -7x+6.

Answer 1

y= x^2-7x+6

∆ = 49-24 =25
x1/2 = 7+-5/2
{x1=7+5/2 = x1 =12/2 = 6
{x2 = 7-5/2 = 2/2 =1

Xv = x1+ x2/2 <> Xv = 6+1/2= 3,5

Yv = -∆/4a <> Yv = -25/4 = -6,25

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