Function [tex]f(x)=\frac{3x-1}{x+4}[/tex]
(a) the function is undefined at x=-4. At x=-4 the denominator becomes 0 and the function has a singularity (-> is no longer a function there)
(b) I am assuming the vertical shift is 4 units UP (your question does not say):
[tex]g(x)=f(x)+4=\frac{3x-1}{x+4}+4=\frac{(3x-1)+4x+16}{x+4}=\frac{7x+15}{x+4}[/tex]
(c) the graph of g(x) compared to f(x) is shifted upwards by 4 units, maintain shapes of the curves.
(d) missing?
(e)
[tex]g(x) = \frac{7x+15}{x+4} = 8 \\7x+15=8x+32\\\rightarrow x = -17[/tex]