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МатематикаРешебник по алгебре 7 класс Мерзляк ФГОС Задание 1026
Задание 1026
\[\boxed{\text{1026\ (1026).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[x = 3 - 2y\]
| \[x\] | \[- 1\] | \[3\] |
|---|---|---|
| \[y\] | \[2\] | \[0\] |
\(\ \)
\[Ответ:(1;1),\ ( - 3;3).\]
\[y = 3 + 2x\]
| \[x\] | \[0\] | \[- 1\] |
|---|---|---|
| \[y\] | \[3\] | \[1\] |
\[y = 2x - 3\]
| \[x\] | \[1\] | \[2\] |
|---|---|---|
| \[y\] | \[- 1\] | \[1\] |
\[x = 2y\]
| \[x\] | \[0\] | \[4\] |
|---|---|---|
| \[y\] | \[0\] | \[2\] |
\(\ \)
\[Ответ:( - 2;\ - 1),(2;1).\]
\[\left\{ \begin{matrix} x - y = 2 \\ x - y = - 2 \\ x + y = 2 \\ x + y = - 2 \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ \ }\left\{ \begin{matrix} y = x - 2 \\ y = x + 2 \\ y = 2 - x \\ y = - 2 - x \\ \end{matrix} \right.\ \]
\[y = x - 2\]
| \[x\] | \[0\] | \[1\] |
|---|---|---|
| \[y\] | \[- 2\] | \[- 1\] |
\[y = x + 2\]
| \[x\] | \[0\] | \[- 1\] |
|---|---|---|
| \[y\] | \[2\] | \[1\] |
\[y = 2 - x\]
| \[x\] | \[0\] | \[1\] |
|---|---|---|
| \[y\] | \[2\] | \[1\] |
\[y = - 2 - x\]
| \[x\] | \[0\] | \[- 1\] |
|---|---|---|
| \[y\] | \[- 2\] | \[- 1\] |
\(\ \)
\[Ответ:( - 2;0),\ (0;\ - 2),\ (0;2),\ \]
\[(2;0)\text{.\ }\]
\[\boxed{\text{1026.\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[1)\]
\[2)\ y( - 2) = 4\]
\[y(0) = 1\]
\[y(2) = - 1\]
\[y(6) = - 1\]
\[3)\ y = 1 \Longrightarrow \text{\ \ }x = 0\]
\[y = - 1 \Longrightarrow \text{\ \ }x = - 2;\ \ x = 6\]
\[y = 0 \Longrightarrow \ \ x = 1;\ \ x = 9\]
