Вопрос:

Ответ:

\[y = 2x - x^{2}\]

\[x\] \[0\] \[1\] \[2\] \[3\] \[4\] \[5\]
\[y\] \[0\] \[1\] \[0\] \[- 3\] \[- 8\] \[- 15\]

\[Среднее\ арифметическое:\ \]

\[\ \frac{0 + 1 + 0 - 3 - 8 - 15}{6} =\]

\[= - \frac{25}{6} = - 4\frac{1}{6}.\]