I have to write code for this problem in Wolfram Mathematica and I cant get any of the commands to work please help!

Part One A person walking along a dock drags a boat by a 10-meter rope. The boat travels along a path known as a tractri. The equation of this path is: y = 101n (10+4100-x2)-v100-r. Dock (a) Graph the function. (b) what is the slope of this path when x = 5 and when x = 9? (c) What does the slope of the path approach as x approaches 10