Question

Ache o VÉRTICE de:
a) f(x) = 1/3x² - 10x/3 + 5
b) f(x) = x² - √3x

Answer 1

a)

Xv=-B/2A

Xv=10/3/2/3

Xv=5

Yv=-Δ/4a

Δ=40/9

Yv=40/9/4/3

Yv= 10/3

 b)

Xv= -b/2a

Xv= √3/2

Yv=-Δ/4a

Δ=3

Yv= -3/4