Find the Axis of Symmetry f(x)=x^3-3x^2-x+3

$f (x) = x^{3} - 3 x^{2} - x + 3$

Write $f (x) = x^{3} - 3 x^{2} - x + 3$ as an equation.

$y = x^{3} - 3 x^{2} - x + 3$