Question

Enconte o vértice na função Y=X²-4X+3

Answer 1

x² -4x +3 = 0

Δ = b² -4ac

(-4)² -4 . 3
16 -12
4

Xv = -b/2a
Xv = 4/2
Xv = 2

Yv = -Δ/4a
Yv = -4/4
Yv = -1

Vértice = { 2 , -1}