Question

Vertice das funçoes
A)F(X)=X²-6X+8
B)F(X)=X²-2X-3

Answer 1

Resposta:

a- (3, -1)

b- (1, -√14/4)

Explicação passo-a-passo:

a-

xv = -b/2a

xv = 6/2

xv = 3

yv = -∆/4a

yv = - [(-6)² - 4 × 1 × 8]/4

yv = - [36 - 32]/

yv = -4/4

yv = -1

b-

xv = -b/2a

xv = 2/2

xv = 1

yv = -∆/4a

yv = - [(-2)² - 4 × 1 × (-3)]/4

yv = - [4 + 12]/4

yv = -√14/4