Question

ASAP

If f(x)= 3x-4, which of these is the inverse of f(x)?
O A. f-¹(x)=X-4/3
B. f¹(x)=x+4/3
OC. F¹(x) = x/3+4
OD. ¹(x)=x/3-4

Answer 1

Explanation:

f(x)=−3x−4

f

(x)=−3x−4 as an equation.

y=−3x−4 Interchange the variables.

x=−3y−4 Solve for y

y=−x3−4

3 Replace y with f−1(x) to show the final answer.

f−1(x)=−x3−43 Verify if f−1(x)=−x3−43

is the inverse of (x)=−3x−4.

F−1(x)=−x3−43