My teacher gave us an end of the year project straight off the internet.
http://www.math.unl.edu/~bharbourne1/M107/107Proj.html y(x) = a cosh(x/a) + b
Some points: (0,50) , (100,100) , (-100,100)
This only involves the first problem:
I was wondering if it is possible to get an exact value for a, instead of the decimal estimate I got from my grapher (107.43202). What would be the method for solving for a?