Let $A = \{ 1,2,3,4 \}$ And $B = \{ a , b , c \}$

Essay

Let $A = \{ 1,2,3,4 \}$ and $B = \{ a , b , c \}$ . Define a function $G : A \rightarrow B$ as follows:
$$G = \{ ( 1 , b ) , ( 2 , c ) , ( 3 , b ) , ( 4 , c ) \}$$
(a) Find $G ( 2 )$ .
(b) Draw an arrow diagram for $G$ .