| A | B |
| Coordinate Plane | The plane containing the X- and Y-axis. |
| Ordered Pair | Pairs of numbers used to locate points in the coordinate plane. |
| Origin | The point of intersection of the two axes in the coordinate plane. |
| Quadrant | One of the four regions into which the X- and Y-axes separate the coordinate plane. |
| X-Axis | The horizontal number line. |
| Y-Axis | The vertical number line. |
| Table Of Values | A chart to organize variables for graphing. |
| Variables | Symbols that are used to represent unspecified numbers. |
| x-coordinate | The first number in an ordered pair. |
| Y-Coordinate | The second number in an ordered pair. |
| Domain | The set of all first coordinates from the ordered pairs in a relation. |
| Range | (1) The set of all second coordinates from the ordered pairs in the relation; (2) The difference between the greatest and the least values of a set of data. |
| Equation | A mathematical sentence that contains an equals sign, =. |
| Expression | A combination of numbers, operators, grouping symbols (such as brackets and parentheses) and/or free variables and bound variables arranged in a meaningful way which can be evaluated. |
| Function | A set of ordered pairs in which no two pairs have the same x-coordinate. |
| Integer | Positive and negative whole numbers and zero. |
| Order Of Operations | Rules for evaluating mathematical expressions (PEMDAS). |
| Independent Variable | The variable in a function whose value is subject to choice. It affects the value of the dependent variable. |
| Dependent Variable | The variable in a function whose value is determined by the independent variable. |
| Constant, Rate Of Change | A symbol that always has the same value. |
| Substitution | (1) Something standing in place of another; (2) The replacement of a variable (a letter in a code message or a placeholder in a number sentence) by a number. |
| Set Notation {} | A notation used to describe the members of a set. |