What is the largest value of x that would make the following list of a points not a function.

Question

{(___,
12
12), (
6
6,
18
18), (
16
16,
19
19))

Answer 1

The largest value of x that would make the list of points not a function is 12. Since the point (12, 18) appears twice in the list, the x-value 12 is associated with two different y-values (12 and 18), violating the definition of a function.