Вопрос:

Ответ:

\[y = 0,5x\]

\[x\] \[0\] \[2\] \[4\]
\[y\] \[0\] \[1\] \[2\]

\(\ \)

\[y(2) = 1;\]

\[y( - 4) = - 2.\]