For this case we have the following function:
[tex]f (n) = n-1
[/tex]
We evaluate the function for each value of n.
We have then:
For n = 4:
[tex]f (4) = 4-1
f (4) = 3[/tex]
For n = 3:
[tex]f (3) = 3-1
f (3) = 2[/tex]
For n = 9:
[tex]f (9) = 9-1
f (9) = 8[/tex]
Then, the table of values is given by:
Input (n) Output (n-1)
4 3
3 2
9 8