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Точки и прямые
Точки могут принадлежать прямым и не принадлежать им.
1. Запишите точки принадлежащие прямой с (красного цвета).
2. Запишите точки принадлежащие двум прямым.
3. Запишите точки, которые не принадлежат прямой а (синего цвета).