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Unit 3 Vocabulary
Ratios and Proportional Relationships
| Term | Definition |
|---|---|
| Complex Fraction | A fraction that contains one or more fractions in its numerator or denominator |
| Constant | A value that does not change |
| Constant of Proportionality | A constant ratio of two variables related proportionally |
| Equivalent Ratios | Two ratios that have the same value |
| Percent Decrease | A percent change describing a decrease in quantity |
| Percent Increase | A percent change describing an increase in quantity |
| Percentage | A ratio that compares numbers to 100 |
| Principal | The amount of money borrowed |
| Proportion | An equation stating that two quantities are equal |
| Rate | A ratio that compares two quantities measured in different units |
| Rate of Change | A ratio that compares the amount of change in a dependent variable to the amount of change in an independent variable |
| Ratio | A comparison between two quantities by division |
| Scale drawing | A two-dimensional representation of an actual object or place |
| Scale factor | The ratio of any two corresponding lengths in two similar geometric figures |
| Similar triangle | Triangles that have the same shape, but their sizes may vary |
| Simple Interest | Interest earned only on the original principal |
| Slope | The rate of change of a function. The slope of a line can be determined by calculating the rise divided by the run of a graph (m = rise/run) |
| Steepness | Represents the rate at which the line is increasing or decreasing |
| Unit rate | A rate in which the second quantity in the comparison is one unit |
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