| A | B |
|---|
| ratio | A comparision of two quantities using division. The ratio of a to b can be written as a to b, a:b, or a/b. |
| rate | A ratio of two quanties with different units. |
| unit rate | A rate with a denomitor of 1. |
| slope | A ratio of the change in y (the rise) to the change of x (the run) between any two points on a line. It is a measure of the steepnees of a line. |
| proportion | An equation stating that two ratios are equivalent. |
| inverse variation | Two quantities x and y show inverse varitation when y=k/x, where k is a number and k isn't 0. |
| cross products | When you multiply the numerator of one fraction by the denomiator of the other. |
| U.S. Customary System | System of measurement that contains units for length, capacity, and weight. |
| metric system | Decimal system of measurement, based on powers of 10, that contain units for length, capacity, and mass. |
| direction variation | Two quantities x and y show direct variation when y=kx, where k is a number and k isn't 0. |
| proportional | Two quantities that form a proportion are proportional. |
