Piecewise functions

Piece wise function is a function composed with different pieces of different functions. The piece wise function could be continuous or discontinuous. Continuous means that there is no >or <, no gaps in the graph! and can be drawn without lifting the pencil. When graphing a piecewise function, we draw a open circle for >and<, we draw a solid dot for less than or equal to and greater than or equal to. When we have a greatest integer function, expressed with [[x]], the function goes on the same wit a pattern.  The piecewise functions with absolute values flips the results and it looks weird.... This chapter is kind of hard but fun.