koordinat titik balik grafik fungsi f(x)=2xkuadrat -4x+1 adalah..

jawab

fungsi kuadrat

y= 2x² - 4x + 1
a= 2
b = -4
c = 1
titk balik (x ,y)
x= - b/2a = - (- 4)/(2)
x = 4/2
x = 2

y = 2.(2)²- 4(2) + 1
y = 8 - 8 + 1
y = 1

titik balik (x,y)= (2, 1)