Need desperate !
what is the inverse of the function f(x) = 2x + 1?

h(x) = x –
h(x) = x +
h(x) = x – 2
h(x) = x + 2

None of the answers.

If f(x) = 2x + 1

let y = 2x + 1

so an easy way to find the inverse is to switch your x and y then make y the subject of the equation so lets do that

let x = 2y + 1
 
by transposition
 x -1 = 2y


∴ if h(x) is the inverse of f(x) then 
    h(x) = 

not that that is the same as y = 0.5x - 0.5 

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