What is the largest value of x that would make the following list of a points not a function. {(___, 14 14), ( 5 5, 18 18), ( 17 17, 20 20))

Since a function cannot have multiple values of the same input, the largest value of x that would make the given list of points not a function is 14.

When x = 14, there are two y-values associated with it (14 and 18). This violates the definition of a function where each input can only have one output.