Question

What is the inverse of the function f(x) = 2x + 1?

Answer 1

y = x/2 -1/2

Explanation:

let’s write this equation as

y = 2x + 1

to find the inverse let’s switch x and y

x = 2y + 1

and solve for y

x -1 = 2y

y = x/2 -1/2

so the inverse is

y = x/2 -1/2