For the quadratic function f(x)=x+4x-5, answer parts (a) through (f). (d) Find the domain and the range of the quadratic function. The domain of fis (Type your answer in interval notation.) The range of fis (Type your answer in interval notation.) (e) Determine where the quadratic function is increasing and where it is decreasing. The function is increasing on the interval (Type your answer in interval notation.) The function is decreasing on the interval (Type your answer in interval notation.) (f) Determine where f(x) > 0 and where f(x) <0. Select the correct choice below and fill in the answer box(es) within your choice. (Type your answer in interval notation. Use integers or fractions for any numbers in the expression.) OA. f(x) <0 on and f(x) is never positive and f(x) <0 on B. f(x)>0 on C. f(x)>0 on , and f(x) is never negative