Question

If f(x) = 5x-3, which expression represents its inverse function?

А. (1+3)/(1+2)
B. *(X+3)/(5)
C. *(5)/(x + 3)
D. *(x-3)/(2)

Answer 1

Pretty sure it's C

Explanation:

For inverse functions, I do the opposite operation

the only logical inverse function I see working in this expression would be C

divide the 5 from 5x and add the 3

Also, subtract the f(x) on both sides to get the "- y"

so, you get : 5/x + 3 = - y (f(x) is just "y")