4, A person is running around an elliptical track. The equation ofthe track is 4x2-25y2-200. Runner (8, 0) Bear 4x2 +25y2-200 (a) When the person is at the point (5, 2), her x-coordinate is increasing at 6 units per minute. Describe how her y-coordinate is changing. (b) Can she run in such a way that her x-coordinate changes at a constant rate? Explain. (c) The inside of the track is heavily wooded, and she can- not see through the woods. There is a bear standing outside the woods at the point (8, 0). When she is at the point (5, 2), can she see the bear? Explain.