Solution 2.

Remark.  We will be using   .  This forces  .

Remark.  Clear the old "rule" for F, otherwise it will be hanging around.  The piecewise definition of the function can be accomplished as follows.

Now set up the table of solutions.  Solve it.  Plot it.  

To see the numerical values enter the command:

(c) John H. Mathews 2004