Question

if f(x) = 2x+4, which of the following is the inverse of f(x)?
O A. F'(x) = 2(x-4)
O B. F-1(0) = Yexa?
O C. F"(x) = POMMAD
O D. F1(x) = T(x+4)

Answer 1

Answer:

${f}^{ - 1} (x)= \frac{x}{2} - 2$

Step-by-step explanation:

The given function is

$f(x) = 2x + 4$Let

$y = 2x + 4$

Interchange x and y.

$x = 2y + 4$

Solve for y,

$x - 4 = 2y$

Divide both sides by 2

$y = \frac{x}{2} - 2$

Therefore;

${f}^{ - 1} (x)= \frac{x}{2} - 2$