Question 49071
You can plug in the numbers yourself because that is really easy to do.
Since the parabola is vertical, the axis of symmetry is equal to the x-value of the vertex.
v(-b/2a,f(x))
v(3,7)
Axis of Symmetry: {{{x = 3}}}
{{{graph(600,600,-10,10,-10,10,-x^2+6x-2)}}}