Find the Riemann sum for f(x) = 2x-1, -6x 4, with five equal subintervals, taking the sample points to be right endpoints. Explain, with the aid of a diagram, what the Riemann sum represents. y y 5 3 1 x 4 -6 -4 -2 3 3 -5 -7 -9 -11 -13H -9 -11 -13 The Riemann sum represents the net area of the rectangles with respect to the Select-V Need Help? Rasd II 5 3 7 9 11 13 x -6 y