Question

Give 5 examples of relations using either set notation, table of values, or mapping diagram, then determine whether these relations are functions

Answer 1

Answer:

let A={ 1,2,3,4}

& B = { 2,3,4}

A×B = { (1,2),(1,3) , (1,4) , (2,2) ,(2,3) ,(2,4) ,(3,2),(3,3) ,(3,4) ,(4,2),(4,3), (4,4)}

1 : no of A×B = no. of A × no. of B

2: B belongs A