Respuesta :

argocolin
1. b
2. a
3. c
hope that helped!
sqdancefan

Answer:

  1. b
  2. a
  3. c

Step-by-step explanation:

If the equation is in the form ...

  y = ( )

then replace y with f(x).

If it is not in that form, solve for y so it is in that form.

__

The only equation that needs to have a solution is ...

  y +4 = x

Subtracting 4 from both sides gives ...

  y = x -4   ⇒   f(x) = x -4

The match is ...

  1. f(x) = -3x -4
  2. f(x) = x -4
  3. f(x) = x +4