Show that the points (0,-1,-7),(2,1,-9) and (6,5,-13) are collinear.Also find the ratio in which the first point divides the join of other 2 points.NO LINKS THIS TIME!​I'm pissed @Experts! You always provide the wrong solutions to my question despite of having asked for twice or thrice! I 'm running out of time,exams are nearing but your answers in which you add links ,are just a model of whatever I had asked but that confuses me,I'm not clear with those stuffs that you send,I need a direct answer for my question,already 2-3 questions I'd typed but hadn't got the answer.