The ellipse x2 + 3y2 = 13, below, has two points when x = -1. 1. Find the slope of the ellipse at both these points. 2. Thoroughly explain the method you used to find the slope in part 1. What are the strengths and weaknesses of the method you used? 3. Explain whether your method will work to find the slope of x2 +xy + y =3 at points -1,2 and (-1,-1 . If it succeeds, please show your work as you find these two slopes. If your method fails, that's fine, just explain thoroughly why it failed