Question

determine o vértice da parábola de função Y=X²-
$\frac{7}{3} x - 2$
​

Answer 1

Resposta:

a = 1

b = -7/3

c = -2

Xv = -b/2a

Xv = 7/3/(-2)

Xv = -7/3.(-1/2)

Xv =  7/6

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Yv = - Δ/4a

Yv = - [ (7/3)² - 4 . 1 . (-2)] / 4

Yv = - [49/9 + 8] /4

Yv = - [(49 + 72)/9]/4

Yv = -  121 / 4

Yv = - 121 / 36

Yv = - 121 / 36

Vértice = (-7/6 ; -121/36]