I don't know these questions. These problems are LINEAR ALGEBRA.

1. We define a relation p on the set {a, b, c, d, e, f, g } by p = {(a, b), (b, b), (c, c), (c, d), (e, c), ( e, d ) , ( f, g ) , (9 ,g ) } (a) Draw the directed graph of p. (b) Which ordered ordered pairs must be adjoined to p to complete it into an equivalence relation on the set {a, b, c, d, e, f, g}? (c) Write down the equivalence classes of the new relation on {a, b, c, d, e, f, g}