Kellen has a graph showing the number of pencils he has left each week as he goes through the month. The graph has the following points on it: (1,15), (2,12), (3,8). Which of the following numbers identifies one of the independent quantities? (1 point)
The independent quantity in this scenario is the week number. The values in the first set of each point represent the week number, while the values in the second set represent the number of pencils. Thus, the number "1" identifies one of the independent quantities.
