Hello all!

We're currently learning about Functions and Relations. Here is a question im unsure about. Help would be greatly appreciated.

Question: For the following function, state:

(i) the domain

(ii) the co-domain

(iii) the range

f : ( -¥ , 0 ) ® R , f (x) = 1/ Ö- x (one divided by square root of negative x)

I'm more concerned about how to do therange... because the answer says that the range is: ( 0 ,¥). How do you know with those types of graphs ( sqaure root underneath ) what the range is?

Help would be greatly appreciated! Thank- you