Question Number 3963 by 123456 last updated on 25/Dec/15
$${f}:\left[\mathrm{0},+\infty\right) \\ $$$${f}\left(\alpha{x}+\beta\right)=\alpha{f}\left({x}\right)+\beta \\ $$$${f}\left({x}\right)=? \\ $$
Answered by prakash jain last updated on 25/Dec/15
$${f}\left({x}\right)={x} \\ $$