Question

Which of the following sets represents a function? {(1,1), (2,1), (3,1), (4,1)}

Answer 1

What are the other sets?

Answer 2

{(1,1), (2,1), (3,1), (4,1)} {(1,1), (2,1), (3,1), (4,1)} {( 1,1), (2,1), (3,1), (2,2)}

Answer 3

{(2,1), (2,2), (3,2), (4,2)}

Answer 4

{(1,1), (2,1), (3,1), (4,1)} this represents a function. the other two do not since 2 maps to two different elements in both.

Answer 5

Riiiight!!! Thank you so much