Examine the graph at right.  

1. Use the graph to complete the table:

   IN $\left(x\right)$	in (x) column 1 blank	in (x) column 2 blank	in (x) column 3 blank	in (x) column 4 blank	in (x) column 5 blank
   OUT $\left(y\right)$	out (y) column 1 blank	out (y) column 2 blank	out (y) column 3 blank	out (y) column 4 blank	out (y) column 5 blank

   Hint (a):

   

   More Help (a):

   IN ($x$)	in (x) column 1 blank	in (x) column 2 blank	in (x) column 3 $\color{blue}{1}$	in (x) column 4 blank	in (x) column 5 $\color{blue}{3}$
   OUT ($y$)	out (y) column 1 blank	out (y) column 2 blank	out (y) column 3 $\color{blue}{1}$	out (y) column 4 blank	out (y) column 5 $\color{blue}{5}$

2. Use the graph to find the rule:
   $y=$ ___________

   Hint (b):

   The graph is a line, so use what you know about rules in tables.