Determine the interval(s) where the function /() = - (x + 4) is increasing Submit your answer in interval notation. For example, if the interval is all values of a greater than or equal to 2, then your response should be (2, co). If there is no interval where the function Is increasing, then enter the symbol @ (found in the "Sets"keyboard below the answer box). If necessary, you can represent the union of intervals using the U symbol (also found in the "Sets" keyboard). Provide your answer below