f(x) =|x+1|+|x-1|-3 can someone help! Is the domain. All realnumbers? Nd the range?

Question

f(x) =|x+1|+|x-1|-3 can 	someone help!  Is 		the 		domain. All 		realnumbers?  Nd the range?

anonymous · Answer

the domain is all real numbers because you can take the absolute value of anything

anonymous · Answer

range is a different story
if $-1<x<1$ then you have $|x+1|=x+1$ and $|x-1|=1-x$ and so on this intevral you are looking at $x+1-x+1-3=-1$ 
i.e. the function is never less than $-1$

anonymous · Answer

The range?

anonymous · Answer

Vvertex?

goformit100 · Answer

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