The number of new businesses established in the US since1990 can be modeled by the functionNx=110.8x^3-5305.5x^2+76,701x+332,892 where x = 0 represents 1990and the domain is [0, 25].
6. Use the Second Derivative Test to discuss the concavity ofthis function on the given interval. What is the POI? Interpret themeaning of the POI in the context of thisproblem.          Â
