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 April 3rd, 2017, 07:25 AM #1 Newbie   Joined: Feb 2017 From: Michigan Posts: 17 Thanks: 0 domain Can someone solve the domain for f(x,y)= (sqrt x-y)/x+1 Thanks!
April 3rd, 2017, 07:48 AM   #2
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Quote:
 Originally Posted by b19 Can someone solve the domain for f(x,y)= (sqrt x-y)/x+1
I assume you mean $f(x,y) = \dfrac{\sqrt{x-y}}{x+1}$

typed like so ...
Quote:
 f(x,y)= sqrt(x-y)/(x+1)
,

correct?

if so, the domain is points in the plane where $x \ge y$ and $x \ne -1$ ... why?
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