Question

Select the correct answer.
What is the inverse of function f?

f(x) = 3-x/7


A. f-1 (x) = 7+x/3

B. f-1(x) =3-7x

C. f-1(x) = 7x+3

D. f-1 (x) = 3- x/7

Answer 1

Answer:b

x=3-y/7

Multiple 7

7x=3-y

Subtract 3

7x-3=-y

Times both sides by negative 1

-7x+3

Answer 2

Answer:

B. f-1(x) =3-7x

Step-by-step explanation: