Question

What is the domain of g(x) = sqrt x +1

Answer 1

There can be no negative in a sqrt 
so x+1 must be equal or greater then 0
x+1$\geq$ 0
x $\geq$ -1
so all answers must be greater then  or equal to -1
-1,0,1,2,3,4,5,6,7,8
(-1,infinity) is the domain