SOLUTION: how do i work with: f(x)= &#8730;(x-2) if &#8730;(-x) don't exist.. well yea in imaganary numbers... my question is how i graf, find the domain and counterdomain?

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Question 335512: how do i work with: f(x)= √(x-2) if √(-x) don't exist.. well yea in imaganary numbers... my question is how i graf, find the domain and counterdomain?
Found 2 solutions by jim_thompson5910, Fombitz:
Answer by jim_thompson5910(35256) (Show Source):
You can put this solution on YOUR website!
To find the domain, simply find all the x values that make nonnegative. Ie solve the inequality

I'm assuming that you mean "codomain" instead of "counterdomain"? Let me know what you mean here.

Answer by Fombitz(32388) (Show Source):
You can put this solution on YOUR website!
The domain of the function is x values for which f(x) exists.
Since the square root requires non-negative arguments.

That's the domain.
.
.
.
Values for f(x) begin at 0 (at ) and get greater with increasing x.
So the range is

SOLUTION: how do i work with: f(x)= &#8730;(x-2) if &#8730;(-x) don't exist.. well yea in imaganary numbers... my question is how i graf, find the domain and counterdomain?

SOLUTION: how do i work with: f(x)= √(x-2) if √(-x) don't exist.. well yea in imaganary numbers... my question is how i graf, find the domain and counterdomain?