Math 106-01: Calculus II: Reading Homework 10.4

1. Separation of Variables : what does separation of variables do for us? how does it work? what's odd about the way the derivative is treated in this method?
   
   1. Using Separation : apply separation of variables to y'(x) = k y(x) to obtain the general solution given by the book.
      
   2. Justification of Separation : how does the book justify the separation procedure in this method? what method that we've seen before is used?