The inverse function f(x) = 3x + 4 is
-
A.
(x-4)/3 -
B.
(x-5)/5 -
C.
(x+3)/4 -
D.
(x+4)/3
Correct Answer: Option A
Explanation
Let y = f(x).
(y = 3x + 4 implies x = frac{y – 4}{3})
Replace y with x.
(y = frac{x – 4}{3} )
The inverse function f(x) = 3x + 4 is
Let y = f(x).
(y = 3x + 4 implies x = frac{y – 4}{3})
Replace y with x.
(y = frac{x – 4}{3} )