\[y = - 2x;\ \ y = 2x - 4\]
\[- 2x = 2x - 4\]
\[- 2x - 2x = - 4\]
\[- 4x = - 4\]
\[x = 1;\]
\[y = - 2 \cdot 1 = - 2.\]
\[Точка\ пересечения\ графиков\ (1;\ - 2).\]