Question 85409
y = x^2 - 6x + 8
y - 8 = x^2 - 6x
y - 8 + 9 = (x - 3)^2
y + 1 = (x - 3)^2
y = (x - 3)^2 - 1
Vertical Parabol ~> Axis of Symmetry ~> x = 3
{{{graph(300,300,-1,5,-2,5,(x - 3)^2 - 1)}}}