Respuesta :

Answer:

Step-by-step explanation:

The given function is f(x) = 9x + 7.  To find the inverse function:

1.  Replace "f(x)  = " with "y = ":  y = 9x + 7

2.  Interchange x and y:  x = 9y + 7        

                                                                          x - 7

3.  Solve this result for y:  9y = x - 7, or y = ---------------

                                                                              9

This is the same result as given answer B.