9. ⢠11 points scalcET8 5.1.002. Consider the following. (a) Use six rectangles to find estimates of each type for the area under the given graph off from x = 0 to x = 12. (1) Sample points are left endpoints. L6 = (ii) Sample points are right endpoints. R6 = (iii) Sample points are midpoints. M6 = /h To. an endannels ata Aseanaimsta af habes sa scan