Posted by **Derick** on Wednesday, May 30, 2012 at 8:10pm.

Let f(x)=x+1 and g(x)= "squareroot" of x

what are the domains of "f" and "g"

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**MathMate**, Friday, June 1, 2012 at 4:20pm
f(x) is a polynomial, so the domain is all of R (real).

g(x)=√x, whose domain is only the non-negative part of real, so

dom g=[0,+∞)

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