Question 1165501
y=(1/2x)+(15/2)
Domain is all x except where x=0.
(-oo, 0) U (0, +oo)

Range is all y except for 15/2, which can only occur when the first term is 0, which it can never be. 
Therefore, the interval is (-oo, 7.5) U (7.5, +oo)

{{{graph(300,300,-10,10,-10,10,(1/2x)+7.5)}}}