onsider the following f x 2x a Use a graphing utility to graph the function y increasing 10 10 constant decreasing 5 5 10 5 5 10 y 10 5 5 10 5 5 10 10 X X 10 10 5 5 y 10 5 5 10 y 10 5 5 10 b Determine the open intervals on which the function is increasing decreasing or constant Enter your answers using interval notation If an answer does not exist enter DNE 5 5