Question

Which set of ordered pairs in the form of (x, y) does not represent a function of x? Instead of putting the ordered pairs, I want to ask; a pair that is NOT a function has the same x-value, right

Answer 1

Here is an example of a set of ordered pairs which is not a function.

{ (1,3); (4,-3); (1,4) }

To be a function, two ordered pairs of the set cannot have the SAME x and a DIFFERENT y value. Note that in the ordered pairs (1,3) and (1,4) that have the same x-value of 1 but have different y-values.

Answer 2

@Tally5667 Question?