Question

Dada a função y= 2x² + 4x - 1 6=

Answer 1

Vamos là.

y = 2x² + 4x - 16

a = 2, b = 4, c = -16

delta

d = 16 + 128 = 144

as raízes

x1 = (-4 + 12)/4 = 2

x2 = (-4 - 12)/2 = -4

o vértice.

Vx = -b/2a = -4/4 = -1

Vy = -d/4a = -144/8 = -18