31. A walker exercises on an elliptical track given by the equa- tion 4x- + 9y

31. A walker exercises on an elliptical track given by the equa- 2 tion 4x2 + 36, where x and y are measured in units of 100 meters. Use Newton's Method to approximate the point on the track at which the walker is nearest to a flag pole located at the point (2, l). What is the distance be- tween the walker and the flag pole for this approximation?