\[\boxed{\text{179\ (179).\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[y = \frac{8}{x}\]
\[x\] | \[- 4\] | \[- 2\] | \[- 0,25\] | \[2\] | \[5\] | \[16\] | \[20\] |
---|---|---|---|---|---|---|---|
\[y\] | \[- 2\] | \[- 4\] | \[- 32\] | \[4\] | \[1,6\] | \[0,5\] | \[0,4\] |
\[y = \frac{8}{- 0,25} = - \frac{8}{\frac{1}{4}} = - \frac{8 \cdot 4}{1} =\]
\[= - 32\]
\[y = \frac{8}{5} = \frac{16}{10} = 1,6\]
\[y = \frac{8}{16} = \frac{1}{2} = 0,5\]
\[0,4 = \frac{8}{x}\]
\[x = \frac{8}{0,4} = 8\ :\frac{2}{5} = \frac{8 \cdot 5}{2} = \frac{40}{2} =\]
\[= 20\]