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ReprovadoNovamente
@ReprovadoNovamente
November 2019
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72_ O Vértice da parábola y = 2x(ao quadrado) - 4x + 5 é o ponto :
a) ( 2, 5)
b) ( -1, raiz quadrada de 11)
c) (-1,11)
d) ( 1, raiz quadrada de 3)
e) ( 1,3 )
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albertrieben
Verified answer
Bom dia
2x² - 4x + 5
a = 2
b = -4
c = 5
delta
d
² = 16 - 40 = -24
vértice
Vx = -b/2a = 4/4 = 1
Vy = -d²/4a = 24/8 = 3
V(1, 3) (E)
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Verified answer
Bom dia2x² - 4x + 5
a = 2
b = -4
c = 5
delta
d² = 16 - 40 = -24
vértice
Vx = -b/2a = 4/4 = 1
Vy = -d²/4a = 24/8 = 3
V(1, 3) (E)