Which represents the inverse of the function f (x) = 2x+1?

f (x) = 2x + 1

To find the inverse, f^-1 (x), of the function:

Put the function as an equation:

y = 2x + 1

Then move x to the left and y to the right;

x = 2y + 1

Then solve for y;

y = x/2 - 1/2

f^-1 (x) = y

f^-1 (x) = x/2 - 1/2