The monotone increasing interval of function y = | LG (x + 1) | is______ .

The monotone increasing interval of function y = | LG (x + 1) | is______ .

The function y = | LG (x + 1) | = LG (x + 1), X ≥ 0 − LG (x + 1), − 1 < x < 0, the definition domain of function is x > - 1. According to the monotonicity of composite function, the monotone increasing interval of function y = | LG (x + 1) | is [0, + ∞), so the answer is: [0, + ∞)