A function has the derivative f'(x) = 3x2 - 7x + 2. What are the stationary points of f, and their natures. Help fill in the blanks.  The x-coordinate of one stationary point is at x = ____. It is a _____. (local maximum, local minimum or horizontal point of inflection).  The x-coordinate of the other stationary point is at x = ____. It is a ____. (local maximum, local minimum or horizontal point of inflection).