Write five characteristics of an affective group and why they're affective

1. There is clear unity of purpose 
2. the group is self-conscious about its own operations
3.the group has set clear and demanding proformance goals 
4.the atmosphere tends to be informal,comfertable,relaxed
5.there is a lot of discussion in which everyone virtually participates 

If you have three collinear points, then all of these points lie in one line. Collinear points should have a minimum three points that are located on one straight line. Two points are always collinear since it is the minimum number to form a line.