need answer to these asap.

2. g is a function from IR to IR such that g(x) [x/3,. 3. R is a relation on set Z such that (x.y) e R if and only if x+y2. 4. S is a relation on set Z such that &,y)'ES if and only if x + y is even. Part V (30 pt., 15 pt. each) 1. Let R be a relation on set {1, 2, 3,4) with R = {(1,2), (3,4), (2,3), (3,2), (2,1),(3,1), a. (5 pt.) Represent R as a directed graph G. b. (1 pt.) Find a walk of length 3 from 3 to 1 in G. c. (1 pt.) Find a path of length 3 from 3 to 1 in G. d. (1 pt.) Find a circuit of length 5 starting at 1 in G