16. Five marks exercise problems I

Let \(f: A \rightarrow B\) be a function defined by \(f(x) = \frac{x}{2} - 1\), where \(A = \{2, 4, 6, 10, 12\}\), \(B = \{0, 1, 2, 4, 5, 9\}\). Represent \(f\) by

 

(i) set of ordered pairs

 

(ii) a table

 

(iii) an arrow diagram

 

(iv) a graph