\[\left\{ \begin{matrix} y = x² - 4x \\ 2x - y = 8\ \ \\ \end{matrix} \right.\ \Longrightarrow \left\{ \begin{matrix} y = x² - 4x \\ y = 2x - 8\ \ \\ \end{matrix} \right.\ \]
\[y = x^{2} - 4x\]
\[x_{0} = \frac{4}{2} = 2;\]
\[y_{0} = 4 - 8 = - 4\]
\[(2;\ - 4).\]
\[x\] | \[0\] | \[1\] |
---|---|---|
\[y\] | \[0\] | \[- 3\] |
\[y = 2x - 8\]
\[x\] | \[2\] | \[3\] |
---|---|---|
\[y\] | \[- 4\] | \[- 2\] |
\[Ответ:(4;0);\ \ (2;\ - 4).\]