Estimate the area of the region between the function and the x-axis on the given interval using n = 6 and using, (a) the right end points of the subintervals for the height of the rectangles, (b) the...

Extracted text: Estimate the area of the region between the function and the x-axis on the given interval using n = 6 and using, (a) the right end points of the subintervals for the height of the rectangles, (b) the left end points of the subintervals for the height of the rectangles and, (c) the midpoints of the subintervals for the height of the rectangles. 2. g (x) = -3z +2x-1 on [-4,0]