Вопрос:

Ответ:

\[y = - 4x\]

\[x = 4:\]

\[y = - 4 \cdot 4 = - 16;\]

\[x = 1:\]

\[y = - 4 \cdot 1 = - 4;\]

\[x = - 2,5:\]

\[y = - 4 \cdot ( - 2,5) = 10;\]

\[x = - 1:\]

\[y = - 4 \cdot ( - 1) = 4.\]