Solution:
In an input/output table, all outputs are 0, regardless of the input.
This means that
The value of x can be

Step 1:
Try the first function, we will have

Step 2:
Try the second function

Step 3:
Try the third function

This function is said to be undefined as the denominator is equal to 0
Step 4:
Try the fourth equation
![\begin{gathered} y=(0)/(x),x-1,x=2,x=0 \\ y=(0)/(0)=undefined \\ y=(0)/(-1)=0 \\ y=(0)/(2)=0 \end{gathered}]()
Hence,
The final answer is
