The y axis (vertical axis - side axis) should be labeled with the velocity that you found by dividing the distance by the time. Your y axis numbers will be determined by the velocities that your group obtained. If the range of velocities is from 70- 100 cm/s then this is the range on your graph. If your velocities range from 100 - 200 cm/s use these numbers.
We will review the graphs in class so just do your best!