10. Five marks example problems I

Let $A = \{1, 2, 3, 4\}$ and $B = \{2, 5, 8, 11, 14\}$ be two sets. Let $f: A \rightarrow B$ be a function given by $f(x) = 3x - 1$. Represent this function

 

(i) by arrow diagram

 

(ii) in a table form

 

(iii) as a set of ordered pairs

 

(iv) in a graphical form