Find the open intervals on which the function f (x) = 2 + 4v1 - a is increasing or decreasing. The safe points will be calculated from these intervals. If the function is never increasing or decreasing, provide an input of NA to your computer. Increasing Interval: Decreasing Interval: Explain, in your own words and with your own work, how you arrived at this result. Be sure to explain using calculus concepts to best support the work of the game design team