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: (1,5), (2,12), (3,8). Which of the following numbers identifies one of the independent quantities?
The independent quantity in this case would refer to the x-coordinate values on the graph. So, the x-coordinate values in the given points are 1, 2, and 3. Thus, the correct option would be one of these: 1, 2, or 3.
