Question

Dada a função f(x) = X2 -4X +3, o ponto de VÉRTICE é:

A
V ( 2, 1 )


B
V ( -2, -1 )


C
V ( 2, -1 )


D
V ( 4, -1 )


E
V ( 3, -2 )

Answer 1

$\mathsf{x_{V}=-\dfrac{-4}{2.1}=2}$

$\mathsf{\Delta=16-12=4}\\\mathsf{y_{V}=-\dfrac{4}{4.1}=1}$

$\mathsf{V(2,1)}$