The image of the function f (x) lg1-x / 1 + X is symmetric about the point

The image of the function f (x) lg1-x / 1 + X is symmetric about the point

F (- x) = LG (1 + x) / (1-x) = - LG (1-x) / (1 + x) = - f (x), so f (x) is an odd function and f (x) is symmetric about the origin (0,0)