koordinat titik balik minimum grafik fungsi f(x) = x^2 6x + 5 adalah -

F(x) = x^2 - 6x + 5
a = 1 , b = -6 , c = 5
Koordinat titik balik = (x,y)
x= -b/2a
x = 6/2(1)
x = 3
y = D/-4a
= b^2 - 4ac/-4a
= (-6)^2 - 4(1) ( 5)/ -4(1)
=36 - 20/-4
= 16/-4
y = -4
Koordinat titik balik = (3,-4)