mr. fantastic, i'm doing the same question, but if you graphand use the horizontal line test, it doesn't pass and therefore is not one-to-one....so does that mean it doesn't have an inverse?
mr. fantastic, i'm doing the same question, but if you graphand use the horizontal line test, it doesn't pass and therefore is not one-to-one....so does that mean it doesn't have an inverse?
It means that it doesn't have an inverse function. However, an inverse relation exists.
If you want an inverse function, then the domain of f needs to be restricted so that f is a 1-to-1 function. The question doesn't say what the domain is ....