Let f(x) = 9 - xon [0, 9]. Find the area between the graph of the function f and the interval [0, 9] using the definition from section 5.4 using right endpoints. Area =Find the average value of the function f(x) - 24sin(x) over the interval 0, 7 . NOTE: Enter an exact answer. fave =Use the areas shown in the figure below to find the following. y = f ( x) Area =0.7 Area -1.1 a Area =2.7 (2) / f()ax = (b) / f ( ) ax = (c) ( f ( 0 ) ax =