Which table below represents a function?(1 point)

To determine which table represents a function, we need to check whether each input (x-value) corresponds to exactly one output (y-value). In other words, for every unique x-value, there should be only one y-value associated with it.

Let's analyze each table:

1. First table:

   x  y
   2  1
   2  6
   2  8
   2  9
   

   • For x = 2, there are multiple y-values (1, 6, 8, 9). This is NOT a function.

2. Second table:

   x  y
   -2  5
   0   5
   2   5
   4   5
   

   • All x-values are unique (-2, 0, 2, 4), each has a single y-value (5). This IS a function.

3. Third table:

   x  y
   5  1
   -1  0
   6  8
   5  7
   

   • For x = 5, there are two y-values (1, 7). This is NOT a function.

4. Fourth table:

   x  y
   5  0
   3  3
   3  1
   8  7
   

   • For x = 3, there are two y-values (3, 1). This is NOT a function.

Based on the analysis, the second table is the only one that represents a function.