| A | B |
|---|
| One-variable equations | 2x - 3 = 7 and 1 - y = 9 |
| Two-variable equations | 4x + 3y = 10 and xy = 6 |
| Solution of an equation in two variables | An ordered pair of numbers that make the sentence true. |
| Ordered pair | A pair of numbers for which the order of the numbers is important. |
| Solve an equation | To find the set of all solutions of the equation. |
| Plot a point | Locate the graph of an ordered pair of real numbers in a coordinate plane. |
| Origin | The intersection of the axes on a coordinate plane. |
| x-axis | The horizontal number line in a coordinate plane. |
| y-axis | The vertical number line in a coordinate plane. |
| Graph of an ordered pair | The point in a coordinate plane associated with an ordered pair of real numbers. |
| Abscissa | x-coordinate |
| Ordinate | y-coordinate |
| Coordinates of a point | The abscissa and ordinate of the point, written as an ordered pair of numbers. |
| Coordinate axes | The x- and y-axes in a coordinate plane. |
| Coordinate plane | A plane in which an ordered pair can be located by reference to two intersecting number lines. |
| Quadrants | The four sections a coordinate plane are separated into by the coordinate axes. |
| Graph of an equation in two variables | All the points that are the graphs of the solutions of the equation. |
