Dik
fungsi kuadrat f(x) = x²– 2x + 7.
Dit
sumbu simetri dan nilai optimum..?
penye
f(x) = x²– 2x + 7.
a = 1
b = -2
c = 7
mk
sumbu simetri x = -b/2a
= -(-2)/1
= 2/1
= 2
nilai optimum = -(b² – 4ac)/4a
= -((-2²) – 4.1.7) / 4.1
= -(4 – 28) / 4
= -(-24)/4)
= -(-6)
= 6