


\[\boxed{\text{1066\ (1066).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]

\[7a + 2 \cdot 5 = 24\]
\[7a + 10 = 24\]
\[7a = 14\]
\[a = 2\]
\(Ответ:a = 2.\ \)

\[\boxed{\text{1066.\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[y = - 4x\]
| \[x\] | \[0\] | \[1\] |
|---|---|---|
| \[y\] | \[0\] | \[- 4\] |

\[1)\ x = 2 \Longrightarrow \ \ y = - 8\]
\[x = - 1 \Longrightarrow \ \ y = 4\]
\[x = 0,5 \Longrightarrow \ \ y = - 2\]
\[2)\ y = - 4 \Longrightarrow \ \ x = 1\]
\[y = 2 \Longrightarrow \ \ x = - 0,5\]
\[3)\ y > 0\ \ при\ \ x < 0.\]