Question

f (x) = 2x + 5. Find the inverse of f(x). 2 O A. f-'(x) = -52 O B. f-1 (z) = O c. f-1 (2x) = 2x – 5 O D. f-*(x) = 5 – 2x

Answer 1

The inverse of f(x) is f(y)

`x=f(y)=2y+5`

Solving for y gives

`\textcolor{#FF7968}{y=(x-5)/(2)}`

Which is choice B.