Question

1- " vértice da parábola"


A) Y= X²

B) Y = X² - 81


Me ajudem por favor !

Answer 1

A)

y = x²

Xvertice: - b / 2a

Xvertice: 0 / 2a

Xvertice: 0

Δ = b² - 4ac

Δ = 0 - 0

Δ = 0

Yvertice = - Δ / 4a

Yvertice = 0

Vértice: (0,0)

B)

x² - 81 = 0

Xvertice: - b / 2a

Xvertice: 0 / 2

Xvertice: 0

Δ = b² - 4ac

Δ = 324

Yvertice: - Δ / 4a

Yvertice: -324 / 4

Yvertice: - 81

Vértice: (0,-81)