Nilai minimum grafik fungsi kuadrat f(x)=2x2-4x+1

F(x) = 2x^2 - 4x + 1
a = 2
b = -4
c = 1

X = -b / 2a
= 4 / 2.2
= 1

Nilai minimum
F(1) = 2( 1 ) ^ 2 - 4( 1 ) + 1
= 2 - 5
= -3