Question

What is the inverse of the function f(x) = 2x – 10?

h(x) = 2x - 5
h(x) = 2x + 5
"
h(x)=2x-5
o ncx) = {x+5

Answer 1

see explanation

Explanation:

let y = f(x) then rearrange making x the subject

y = 2x - 10 ( add 10 to both sides )

y + 10 = 2x ( divide both sides by 2 )

`(y+10)/(2)` = x

Change y back into terms of x

`f^(-1)` (x) =
`(x+10)/(2)`