Вопрос:

Ответ:

\[y = \left\{ \begin{matrix} x^{2},\ \ \ \ если\ x \leq 0 \\ 8,\ \ \ \ \ \ \ если\ x > 0 \\ \end{matrix} \right.\ \]

\[x = - 4:\]

\[y = ( - 4)^{2} = 16.\]

\[x = 0:\]

\[\ y = 0^{2} = 0.\]

\[x = 6:\]

\[y = 8.\]