Решите графически систему уравнений: y+x=0, 4x+y=6.

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Ответ:

Accepted Answer

\[\left\{ \begin{matrix} y + x = 0\ \ \\ 4x + y = 6 \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ \ \ \ \ \ }\]

\[\left\{ \begin{matrix} y = - x\ \ \ \ \ \ \ \\ y = 6 - 4x \\ \end{matrix} \right.\ \]

\[y = - x\]

\[x\]	\[0\]	\[1\]
\[y\]	\[0\]	\[- 1\]

\[y = 6 - 4x\]

\[x\]	\[1\]	\[2\]
\[y\]	\[2\]	\[- 2\]

\[Ответ:(2;\ - 2).\]