Question

f(x) = x² - 2x – 3: calcular vertice da parabola

Answer 1

Xv = -b/2a = 1

Yv = -delta/4a =4

Answer 2

Xv=$\frac{-b}{2a}$
Xv$\frac{-(-2)}{2.1}$
Xv=$\frac{2}{2}$
Xv=1
Yv=$\frac{- delta}{2a}$
Yv=$\frac{-(-8)}{2.1}$
Yv=$\frac{8}{2}$
YV=4