In the equation s 5 5m 1 8, s is the variable, and m is the variable. You can use the equation to create a list of ordered pairs. The first number in the ordered pair is a value of the variable . The second number in the ordered pair is a value of the variable . To graph the equation, the variable is graphed along the horizontal axis and the variable is graphed along the vertical axis. Two points on the graph of s 5 5m 1 8 are ( , 23) and (8, ).