Решебник по алгебре 7 класс Мерзляк ФГОС Задание 995

\[\boxed{\text{995\ (995).\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]

\[M\ (6;0);\ \ K\ (0;6):\]

\[y = kx + b\]

\[0 = 6k + b\]

\[6 = 0 + b \Longrightarrow \ b = 6\]

\[6k = - 6 \Longrightarrow \ k = - 1\]

\[y = - x + 6\]

\[y + x = 6.\]

\[\boxed{\text{995.\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]

\[f(x) = \left\{ \begin{matrix} - 2x + 1,\ \ x \leq - 2 \\ x^{2},\ \ \ \ \ \ \ \ \ \ - 2 < x < 3 \\ 6,\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x \geq 3\ \\ \end{matrix} \right.\ \]

\[1)\ f( - 3) = - 2 \cdot ( - 3) + 1 =\]

\[= 6 + 1 = 7\]

\[2)\ f( - 2) = - 2 \cdot ( - 2) + 1 =\]

\[= 4 + 1 = 5\]

\[3)\ f(2) = 2² = 4\]

\[4)\ f(3) = 6\]

\[5)\ f(2,9) = {2,9}^{2} = 8,41\]

\[6)\ f(8,1) = 6\]