\[y = \frac{49}{x}\]
\[x = \frac{49}{x}\]
\[x^{2} = 49\]
\[x = 7;\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x = - 7\]
\[y = \frac{49}{7} = 7;\ \ \ \ \ y = \frac{49}{- 7} = - 7.\]
\[Две\ точки:\ \ \ (7;7)\ \ и\ \ ( - 7;\ - 7).\]