5x+7 The function f(x)=- is one-to-one. x+5 (a) Find its inverse and check your answer. (b) Find the domain and the range of f and f 1 (a) f(x)=(Simplify your answer.) (b) Find the domain of f. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. The domain is {xx }. (Type integers or fractions. Use a comma to separate answers as needed.) B. The domain is {x|x# }. (Type integers or fractions. Use a comma to separate answers as needed.) OC. The domain is {xlx }. (Type integers or fractions. Use a comma to separate answers as needed.) D. The domain is the set of all real numbers. Find the range of f. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The range is {yly }. (Type integers or fractions. Use a comma to separate answers as needed.) OB. The range is {yly # }. (Type integers or fractions. Use a comma to separate answers as needed.) C. The range is {yly }. (Type integers or fractions. Use a comma to separate answers as needed.) D. The range is the set of all real numbers.