Match each function with the expression representing its inverse function.

1. y = x-4
   
2. g(x) = -0.5x
   
3. k(x) = x
   
4. p(x) = x + 4
   
5. h(x) = 4x
   
6. ƒ(x) = x/2
   
   

Choices:

2x

-2x

0.25x

x

x-4

x+4