Question

can you tell me if {(1,1), (1,2),(2,1),(2,2),(3,3),(4,4)} if its ether reflexive, symmetric, whether its antisymmetric, and whether if its transitive

Answer 1

It cannot be reflexive, because (1,2) (2,1)
It is symmetric I think.

Answer 2

it is refleixive actually i for got to put the set is A = {1,2,3,4}

Answer 3

could you explain why you think its reflexive though

Answer 4

You sure it's reflexive?
Because reflexive is only when f(x) such that (a,a) belongs to R where R is the set of all real numbers and (1,2) and (2,1) are not reflexive.

Answer 5

its considered when reflexive when (a,a) is an element of R

Answer 6

thus (1,1) and (2,2) and (3,3) (4,4)

Answer 7

plat the points... draw the line y=x and then if the points are equidistant from the line and when joined... the interval is perpendicular to y = x the point is reflected in y = x