\[y = 3x - 6\]
\[x = 0:\]
\[y = 3 \cdot 0 - 6 = - 6.\]
\[y = 0:\]
\[3x - 6 = 0\]
\[3x = 6\]
\[x = 2.\]
\[Точки\ пересечения:A(0; - 6);B(2;0).\]