SOLUTION: Which equation represents the inverse, f ^−1(x), of the function f(x) = 3x + 1? Option A: f^-1 (x) = 1/3 x+1 Option B: f^-1 (x) 1/3 x-1 Option C: f^-1 (x) 1/3 x- 1/

Algebra ->  Functions -> SOLUTION: Which equation represents the inverse, f ^−1(x), of the function f(x) = 3x + 1? Option A: f^-1 (x) = 1/3 x+1 Option B: f^-1 (x) 1/3 x-1 Option C: f^-1 (x) 1/3 x- 1/      Log On


   

Question 941101: Which equation represents the inverse, f ^−1(x), of the function f(x) = 3x + 1?
Option A: f^-1 (x) = 1/3 x+1
Option B: f^-1 (x) 1/3 x-1
Option C: f^-1 (x) 1/3 x- 1/3
Option D: f^-1 (x) 1/3 x + 1/3
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use x,y notation.
y=3x%2B1
Interchange x and y and solve for y.
x=3y%2B1
3y=x-1
y=%28x-1%29%2F3
This new y is the inverse