Determine the domain and range of f (x, y) = √ry-5 domain: a. all points in the xy-plane b. all points in the xy-plane so that ay > 5 c. all points in the xy-plane so that ay 5 d. all points in the xy-plane so that ay # 5 range: a. (0,[infinity]) b. (0,00) c(-[infinity],[infinity]) d. (-[infinity],0) (0,00)