What are the domain and range of f(x) = (one-sixth) superscript x + 2?

domain: {x | x > - 1/6 }; range: {y | y > 0}
domain: {x | x > 1/6} ; range: {y | y > 2}
domain: {x | x is a real number}; range: {y | y > 2}
domain: {x | x is a real number}; range: {y | y > –2}