Step-by-step explanation
Part A
We are told to obtain the domain of the given function:

The domain of a function is the set of all possible inputs for the function.
we can use the graph to obtain the intervals of the domain
![\mathrm{The\:domain\:of\:a\:function\:is\:the\:set\:of\:input\:or\:argument\:values\:for\:which\:the\:function\:is\:real\:and\:defined}]()
Thus, the solution is
![\begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:<p></p><p>For part B</p>[tex]y(x)=(x)/(|x+1|+4)]()
The domain will be
![\begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:<p></p><p>Part C</p><p></p>[tex]z(x)=(x)/(|x+1|-4)]()
The domain will be
