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Unit 3 Vocabulary
Unit 3: Ratios and Proportions
| Question | Answer |
|---|---|
| Ratio | a comparison between two quantities by division |
| Percentage | a ratio that compares numbers to 100 |
| Unit rate | a rate in which the second quantity in the comparison is one unit |
| Constant | a value that does not change |
| Proportion | an equation stating that two quantities are equal |
| Percent Increase | a percent change describing an increase in quantity |
| Percent Decrease | a percent change describing a decrease in quantity |
| Rate | a ratio that compares two quantities measured in different units |
| Complex Fraction | a fraction that contains one or more fractions in its numerator or denominator |
| Principal | the amount of money borrowed |
| Simple Interest | interest earned only on the original principal |
| Rate of Change | a ratio that compares the amount of change in a dependent variable to the amount of change in an independent variable |
| Equivalent Ratios | two ratios that have the same value |
| Constant of Proportionality | a constant ratio of two variables related proportionally |
| 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 |
| 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 |
Created by:
Dr. Sirmans
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