Respostas

2014-08-26T19:22:56-03:00
y = 4x - 2x²

Xv = -b / 2.a
Xv = 1

Yv = - Δ / 4.a
Yv = 2

Vértice = (1; 2)

Im = {yER/y ≥ 2}