This is the question. Given two graphs, G1 and G2 where G1 is : V(G1) = {1,2,3,...9)}, E(G1) = {<x,y>| x divides y, x<y} and G2 is: V(g1) = {1,2,3..5}, E(G2) = {<x,y>|x<y<=x+3)}
Draw the graphs and show G1∪G2 and G1∩G2.
How do you know how to draw the graphs.