Question

Find the inverse of f(x) = x^2 + 2
Check to show the inverse is correct

Answer 1

for the inverse let x = y^2 + 2... and make y the subject

\[y = \pm \sqrt{x -2}\]

Answer 2

I mean, that function doesn't actually have an inverse.....

Answer 3

Unless you're restricting your domain, of course.

Answer 4

thats right... there are 2 inverses... the positive and the negative.....

Answer 5

so state the domain for each inverse