Question

me ajudem pfvrrrrrrr​

Answer 1

Explicação passo-a-passo:

5) VÉRTICE

x = -b/2a

x = -4/2 . 1

x = -2

y = -D/4a

y = 24/4 . 1

y = 6

V = (-2, 6)

6) 3x² - 7x + 6 = 0

a= 3; b = -7; c = 6

D = -7² - 4 . 3 . 6

D = 49 - 72

D = -23