Question

Which sets of ordered pairs represent function from A = { 2, 3, 4 } to B = { 1, -2, 2, 0, 3}?​

Answer 1

Answer:

justify : {(1,0), (3,3) ,(2,-1) ,(4,1),(2,2)} does not represent a function.

Reasons :(2,-1)and (2,2) show that element 2€ a has been assigned to image two images -1 and 2from set B.