domain 4x-x^2-y^2 has to be > or equal to 0, so x^2+y^2 < or equal to 4.

range: I have no idea how to find the range here.

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- Jul 12th 2008, 02:12 PMdataspotmultivariable function- domain and range

domain 4x-x^2-y^2 has to be > or equal to 0, so x^2+y^2 < or equal to 4.

range: I have no idea how to find the range here. - Jul 12th 2008, 02:18 PMTKHunny
Domain:

Well, yes, but what is that? Do you see the border of this region as a circle? The region contained within the circle is a ...?

Range:

What happens for x = y = 0? Is that significant?

What do you know about the "Principle" square root? Positive? Negative? Zero? - Jul 12th 2008, 04:10 PMMathstud28