\[y = \frac{8}{x}\]
\[x\] | \[\pm 2\] | \[\pm 4\] |
---|---|---|
\[y\] | \[\pm 4\] | \[\pm 2\] |
\[y = - x^{2} + 6x - 5 \Longrightarrow ветви\ \]
\[вниз.\ \]
\[x_{0} = \frac{- 6}{- 2} = 3\]
\[y_{0} = - 9 + 18 - 5 = 4 \Longrightarrow \ \ (3;4)\text{.\ }\]
\[x\] | \[0\] | \[1\] |
---|---|---|
\[y\] | \[- 5\] | \[0\] |
\[- x^{2} + 6x - 5 = \frac{8}{x} \Longrightarrow имеет\ \]
\[3\ корня.\]
\[Ответ:3.\]