Ordered pairs for Functions

Question

A function is defined a ((1,0), (3,2), (8,5), (2,7)). Isaac is asked to create one more ordered pair for the function. State one ordered pair that Isaac could add to the set to keep it a function. Explain why the ordered pair that you chose would work.

Answer 1

A function cannot have the same input with different outputs. So (4,3) is an example that would work. 4 is a unique input or x value.