Given a collection of points P in the plane, a 1-set is a point in P that can be separated from the rest by a line, .i.e the point lies on one side of the line while the others lie on the other side.
The number of 1-sets of P is denoted by n1(P). The minimum value of n1(P) over all configurations P of 5 points in the plane in general position(.i.e no three points in P lie on a line) is

a)3 b)5 c) 2 d)1

• thanxx for the solution
• 12 years agoHelpfull: Yes(13) No(3)
• Given a collection of points P in the plane, a 1-set is a point in P that can be separated from the rest by a line, .i.e the point lies on one side of the line while the others lie on the other side.
  
  5
  
  The number of 1-sets of P is denoted by n1(P). The minimum value of n1(P) over all configurations P of 5 points in the plane in general position (.i.e no three points in P lie on a line) is
  a) 3 b) 5 c) 2 d) 1
• 13 years agoHelpfull: Yes(6) No(24)
• what is right solution 3 or 5?
  
• 9 years agoHelpfull: Yes(2) No(2)
• Since no 3 points lies in same position the minimum point is 3
• 9 years agoHelpfull: Yes(1) No(1)