Question

Select the correct answer.

What is the inverse of function f?
f(x) = 3-x/7

OA. f-¹(x) = 7x - 3
OB. f-¹(x) = 3 - 7x
OC. f-¹(x) = 3 - x/7
OD. ƒ-¹ (x) = 7-x/3

Answer 1

B

Explanation:

x=3-y/7

Multiple 7

7x=3-y

Subtract 3

7x-3=-y

Times both sides by negative 1

-7x+3