[问答题]
1. Write down the domazaw :x 4p.nkxfi8umjkgx40j+7va76 v f s7pr n2,xm2fin and range of the logarithmic function $y=\log _{a}$ x where a>0 and a $\neq 1$ .
2. Given that $\log _{x^{2}} y=9 \log _{y}\left(x^{2}\right)$ , find all the possible expressions of y as a function of x .
