Resposta :
Vamos là.
a) f (x) = x²- 4x + 4
Vx = 4/2 = 2, Vy = f(2) = 0
P(2, 0)
b) f (x) = - x² - 4x - 4
Vx = 4/-2 = -2, Vy = f(-2) = 0
P(-2, 0)
c) f (x) = x² - 2x + 1
Vx = 2/2 = 1, Vy = f(1) = 0
P(1, 0)
Vamos là.
a) f (x) = x²- 4x + 4
Vx = 4/2 = 2, Vy = f(2) = 0
P(2, 0)
b) f (x) = - x² - 4x - 4
Vx = 4/-2 = -2, Vy = f(-2) = 0
P(-2, 0)
c) f (x) = x² - 2x + 1
Vx = 2/2 = 1, Vy = f(1) = 0
P(1, 0)