Question 1164561
f(x)=1 for x <0. The domain is x<0 or (-oo, 0)
the range is {1}

f(x)=(x-2)^2-3
the domain is (0, 4)
can substitute in values or graph. 
The range is [-3, 1)

{{{graph(300,300,-10,10,-5,5,(x-2)^2-3)}}}