Question

As coordenadas do vértice da função y=x2 -2x+1

Answer 1

y=x^2-2x+1
x^2-2x+1=0
delta=b^2-4.a.c
delta=(-2)^2-4.1.1
delta=4-4
delta=0
xv=-b/2a
xv=-(-2)/2.1
xv=2/2
xv=1
yv=- delta/4a
yv=-0/4.1
yv =-0/4
yv=0

Answer 2

y=x=2-2x+1
y=2x-2x+1
y=1