Represent the function f = { (–1, 2), (– 3, 1), (–5, 6), (– 4, 3) } as

(i) a table (ii) an arrow diagram

Let A = {5, 6, 7, 8 }; B = { –11, 4, 7, –10,–7, –9,–13 } and f = {( x,y) : y = 3 - 2x, x ∈ A, y ∈ B }|

(i) Write down the elements of f. (ii) What is the co-domain?

(iii) What is the range? (iv) Identify the type of function.

State whether the following graphs represent a function. Give reason for your answer.

Let A = { 6, 9, 15, 18, 21 }; B = { 1, 2, 4, 5, 6 } and f : A → B be defined by

. Represent f by

(i) an arrow diagram

(ii) a set of ordered pairs

(iii) a table

(iv) a graph.

Let A = {4, 6, 8, 10 } and B = { 3, 4, 5, 6, 7 }. If f : A → B is defined by then represent f by

(i) an arrow diagram

(ii) a set of ordered pairs

(iii) a table.