Gráfico de una relación binaria, intersección, simetrías, extensión, dominio y rango

http://cursosgratis316.blogspot.pe/ https://www.facebook.com/profile.php?... Graph of a binary relation Intersection of a binary relation Symmetries of a binary relation Extension of a binary relation Domain and range of a binary relation Symmetry with the x-axis Symmetry with the y-axis Symmetry with the origin Domain of a binary relation Range of a binary relation