Question

What is the inverse of function f?

Answer 1

3 - 7x

Explanation:

Given ,

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

• Let f(x) = y

=> y = 3 - x / 7

• Interchange x and y .

=> x = 3 - y /7

• Solve for y .

=> 7x = 3 - y

=> y = 3 - 7x

=> f-¹(x) = 3 - 7x