Question 1088426

f={(0,2),(1,3),(2,4),(3,5)} inverse

 finding an inverse is simply the swapping of the x and y coordinates

inverse ={(2,0),(3,1),(4,2),(5,3)}

IS a function,  if any x's repeat; in your case no x's repeat

{{{f(x)=x - 2}}} (your inverse is linear function)