The inverse function f(x) = 3x + 4 is
-
(x-4)/3
- (x-5)/5
- (x+3)/4
- (x+4)/3
The correct answer is: A
Explanation
Let y = f(x).
\(y = 3x + 4 \implies x = \frac{y - 4}{3}\)
Replace y with x.
\(y = \frac{x - 4}{3} \)