Question

Calcule o vértice da função y= 5x2-10x+4

Answer 1

Resposta:

5x² - 10x +4 = 0

a= 5

b= - 10

c = 4

X(v) = - b/2a

X(v) = 10/2(5)

X(v) = 10/10

X(v) = 1

Y(v) = - A/4a

A = 100 - 4(5)(4)

A = 100 - 80

A = 20

Y(v) = - 20 /4(5)

Y(v) = -20/20

Y(v) = -1

S= (1 ; - 1)