What are the domain, range, and asymptote of hx=2x+4 2 domain: x|x>0 ; range: y | y is a real number; asymptote: y=0 domain: x|x>-4 ; range: y | y is a real number; asymptote: y=-4 domain: x|x is a real number; range: y|y>0 ; asymptote: y=0 domain: x|x is a real number; range: y|y>0 ; asymptote: y=-4