[ATTACH=full]3191[/ATTACH] For (a), I have to plot points on the xy-plane given the values for x and y in the table. For (b), I say the entrance score is x = 65. For (c), I say no. The entrance scores vary from low to high and thus do not reflect on the scores of the final exam. The entrance exam score x increased to a higher exam score y after going through the course. You say?