\(y+\sqrt{2}x-3=0\Leftrightarrow y=-\sqrt{2}x+3\)
Gọi đt cần tìm là \(y=ax+b\left(a\ne0\right)\)
\(\Leftrightarrow\left\{{}\begin{matrix}a+b=-2\\a=-\sqrt{2};b\ne3\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}a=-\sqrt{2}\\b=-2-\sqrt{2}\end{matrix}\right.\\ \Leftrightarrow y=-\sqrt{2}x-\sqrt{2}-2\)