Which function has an inverse that is also a function? g(x) = 2x – 3 k(x) = –9x2 f(x) = |x + 2| w(x) = –20

Option A. g(x) = 2x - 3

Step-by-step explanation:

The given function is g(x) = 2x - 3

To find the inverse of this function we will rewrite the expression in the form of an equation

y = 2x - 3

2x = y + 3

x = (1/2)(y + 3)

So the inverse function of g(x) will be

rest in all the options inverse of g(x) is not a function.

$12. that is my answer.