A. ( " ") A point zo is called a fixed point of N(x) if the graph of N(a) passes through the point (a) N(x) has two fixed points. Find their coordinates, and then explain what each fixed point represents in terms of the phenomenon being described. (b) The fixed point with the larger z-value is characterized as stable if the absolute value of the derivative of N(x) at that point is less than 1, and unstable if the absolute value of the derivative of N(z) at that point is greater than 1. Explain carefully why that characterization makes sense. Your explanation should connect the mathematics to the phenomenon being described. Hint: Draw some examples of stable and unstable fixed points. What happens to populations near those fixed points