Question

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

Answer 1

`{f}^( - 1) (x) = (x)/(3) + (7)/(3)`

hence option d is the correct option.

Answer 2

Option C is answer.

Explanation:

Hey there!

Given;

f(x) = (3-x) /7

Let f(x) be "y".

y = (3-x) /7

Interchanging "x" and "y".

x = (3-y)/7

7x = 3-y

y = 3-7x

Therefore, f'(x) = 3-7x.

Hope it helps!