The average number of vehicles waiting in a line to enter a parking ramp can be modeled by the functionf(x) =x/5(4-x)where x is a quantity

The average number of vehicles waiting in a line to enter a parking ramp can be modeled by the functionf(x) =x²/5(4-x)where x is a quantity between 0 and 1 known as the traffic intensity. Find the rate of change of the number of vehicles in line with respect to the traffic intensity for x = 0.2.The rate of change for x = 0.2 is.(Simplify your answer. Type an integer or decimal rounded to four decimal places as needed.)