In which of the relations represented by the tables below is the output a function of the input?

Select all correct answers.

Select all that apply:

$\backslash$table$[[$Input$,3,8,6,4],[$Output$,2,1,4,2]]$

$\backslash$table$[[$Input$,1,-3,-2,9],[$Output$,3,-3,6,6]]$

$\backslash$table$[[$Input$,-2,1,-2,-1],[$Output$,-2,-3,-1,2]]$

$\backslash$table$[[$Input$,-5,-5,4,-1],[$Output$,-5,11,0,12]]$

$\backslash$table$[[$Input$,1,0,4,0],[$Output$,7,8,3,5]]$