1. The problem statement, all variables and given/known data 2. Relevant equations Only ones I know that are relevant are the equations shown in the question (for the left and right limits). 3. The attempt at a solution The difficulty that I am having right not is comprehending what is really being asked from the question. From what I understand, then question is asking the "m" values from the left and right limits at the top, and the value for "m" when those limits are the same. However, how would I go about finding the value of "m" if I have no x or y co-ordinates given?