\[y = \left\{ \begin{matrix} 7,\text{\ \ \ \ \ \ \ \ \ }\ \ если\ x \leq 0 \\ x^{2},\ \ если\ x > 0 \\ \end{matrix} \right.\ \]
\[x = 1 \Longrightarrow y = 1^{2} = 1.\]
\[x = 0 \Longrightarrow y = 7.\]
\[x = - 6 \Longrightarrow y = 7.\]