5 For a certain individual the volume in liters of air in the lungs during 2 respiratory cycles is given in the chart below Volume Of Air in Lungs 1 0 8 0 2 Blank 1 5 Time sec a What is the minimum degree of a polynomial function that could be used to model data given above 4 points b Would the leading coefficients be positive or negative 4 points Blank 2 10 A