What are the domain, range, and asymptote of h(x) = (0.5)x – 9? domain: {x | x > 9}; range: {y | y is a real number}; asymptote: y = 9 domain: {x | x > –9}; range: {y | y is a real number}; asymptote: y = –9 domain: {x | x is a real number}; range: {y | y > 9}; asymptote: y = 9 domain: {x | x is a real number}; range: {y | y > –9}; asymptote: y = –9