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Lesson 4
| Term | Definition |
|---|---|
| Constant of proportionality | the unit rate in a proportional relationship |
| Ordered pair | a pair of numbers (x, y) that describes the location of a point in the coordinate plane |
| Origin | the point (0, O) in the coordinate plane where the x-axis and y-axis intersect |
| Proportional relationship | the relationship between two quantities where one quantity is a constant multiple of the other quantity |
| X-coordinate | the first number in an ordered pair; it tells the point's horizontal distance from the y-axis |
| Y-coordinate | the second number in an ordered pair; it tells the point's vertical distance from the x-axis |
| Identify | to know and say what something or someone is |