$\frac{x_1}{y_1} = \frac{8}{4} = 2$, следовательно:
$y_2 = \frac{x_2}{2} = \frac{6}{2} = 3$;
$y_3 = \frac{x_3}{2} = \frac{2}{2} = 1$;
$y_4 = \frac{x_4}{2} = \frac{1}{2}$;
$y_5 = \frac{x_5}{2} = \frac{\frac{1}{2}}{2} = \frac{1}{2} * \frac{1}{2} = \frac{1}{4}$;
$y_6 = \frac{x_6}{2} = \frac{0}{2} = 0$;
$y_7 = \frac{x_7}{2} = \frac{-1}{2} = -\frac{1}{2}$;
$y_8 = \frac{x_8}{2} = \frac{-2}{2} = -1$;
$y_9 = \frac{x_9}{2} = \frac{-3}{2} = -\frac{3}{2} = -1,5$;
$y_{10} = \frac{x_{10}}{2} = \frac{-4}{2} = -2$.

$y = \frac{1}{2}x$

$y_1 = \frac{1}{2}x_1 = \frac{1}{2} * 0 = 0$;
$y_2 = \frac{1}{2}x_2 = \frac{1}{2} * 2 = 1$.