Question

Question 4 of 10

If f(x) = 5x + 4, which of the following is the inverse of f(x)?
A. f-'(x) = 5x - 4
O B. F'(x) = *5
X-4
O C. f-'(x) = x=S
-5
4
D. f-'(x) = 4 - 5x
SUBMIT

Answer 1

f(x) = (x - 4)/5

Explanation:

f(x) = 5x + 4

Inverse of f(x)

x = 5f(x) + 4

5f(x) = x - 4

f(x) = (x - 4)/5