\[y = 2x - 9\]
\[2x - 9 = 0\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ y = 2 \cdot 0 - 9\]
\[2x = 9\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ y = - 9\]
\[x = 4,5\]
\[(4,5;\ \ 0)\text{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }(0;\ - 9)\]
\[Ответ:(4,5;\ \ 0);\ \ (0;\ - 9).\]