\[y = - \frac{1}{3}x\]
\[y = - 1:\]
\[- \frac{1}{3}x = - 1\ \ \]
\[x = 3.\]
\[y = \frac{2}{3}:\ \ \]
\[- \frac{1}{3}x = \frac{2}{3}\text{\ \ }\]
\[x = - 2.\]
\[y = \frac{1}{4}:\ \ \]
\[- \frac{1}{3}x = \frac{1}{4}\text{\ \ }\]
\[x = - \frac{3}{4} = - 0,75.\]
\[y = 0,2:\ \ \]
\[- \frac{1}{3}x = 0,2\ \ \]
\[x = - 0,6.\]