\[\boxed{\text{826\ (826).\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[1)\ A\ (9;\ - 3):\ \ \]
\[- \frac{9}{3} = - 3\ \ \]
\[- 3 = - 3 \Longrightarrow \ \ истинное;\]
\[2)\ \text{B\ }(6;2):\ \ \]
\[- \frac{6}{3} = 2\]
\[- 2 \neq 2 \Longrightarrow \ \ ложное;\]
\[3)\ \text{C\ }( - 1;3):\ \ \]
\[\frac{- ( - 1)}{3} = 3\ \]
\[\frac{1}{3} \neq 3 \Longrightarrow \ \ истинное;\]
\[4)\ D\ ( - 12;4):\ \]
\[\ \frac{- 12}{- 3} = 4\]
\[4 = 4 \Longrightarrow \ ложное.\]