Reference: Calculus and Its Applications, 12th, by Marvin L. Bittinger and

David Ellenbogen Book

Elementary Applied Calculus

I need help with questions

Find the area under the graph of f over the interval [2,9]. 6x +7, for x$7 f(x) = 5 84 - -x, for x > 7 The area is 298 (Type an integer or a simplified fraction.)Find the area under the graph of f over the interval [ - 2,3]. +1 xs1 f(x) = 2x X>1 The area is 14 . (Simplify your answer.)Find the area of the region enclosed by f(x) and the x-axis for the given function over the specified interval. x- +3x+4 x