| A | B |
| Stem-Leaf Plot | A graph that is used to order numbers from least to greatest. |
| Line Graph | A graph that is used to display data over a period of time. |
| Vertical Axis | The axis that goes up and down. Also known as the y-axis. |
| Horizontal Axis | The axis that goes left to right. Also known as the x-axis. |
| Interval | The difference between two numbers on the scale. |
| Scale | The series of numbers on the each axis that are equal distance from one another. |
| Stem | The digit to the left of the ones digit. |
| Leaf | The ones digit of each data value. |