1) Find the point on the hyperbola xy=8 closest to (3,0).

I honestly, have no idea what to do. I seriously do not remember discussing anything like this in class, nor having any previous problems in homework. If anyone can give me a start or walkthrough, that would be fantastic!

hmm alright.

Ive gotten too $\displaystyle squareroot(x^2 - 6x + 9 +64/x^2)$

but am not sure how to get from there, to the minimum