Question

2)Determine as coordenadas do vertice V da parabola que representa a funçao f(x)=x²-3x+2

Answer 1

f(x)=x²-3x+2

$Xv=- \frac{b}{2a} = \frac{-(-3)}{2} =\frac{3}{2}$

$Yv=- \frac{\triangle}{4a} =- \frac{1}{4}$

$V( \frac{3}{2} ,- \frac{1}{4} )$

Δ=b²-4ac
Δ=3²-4(2)
Δ=9-8
Δ=1