Question 76458
if you set y equal to zero and factor the resulting quadratic equation, you get (x-4)(x-2)=0


this means that when y=0, x=2 and x=4 (these are the x intercepts)


the graph of this function is a parabola, opening upward, with the axis of symmetry parallel to the y-axis


the parabola crosses the x-axis at two points, and the axis of symmetry is midway between them at x=3


x=3 IS the equation for the axis of symmetry