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Test 5 Review
Ratios, Proportions, Scale Drawings, Similar Figures
| Term | Definition |
|---|---|
| Similar Figures | figures that have the same shape, but different size. Their sides are proportional |
| Scale Drawing | a drawing that is proportional to an actual object. |
| Scale Factor | a scale written as a ratio in simplest form. The scale factor shows how many units in a picture or a model represent units in real life |
| Direct Variation | In a table, a constant ratio exists. In a graph, the graph is a straight line that passes through the origin. |
| Ratio | a comparison of two quantities by division |
| Rate | a ratio comparing numbers with different units |
| Unit Rate | a rate in which the second quantity is 1 |
| Unit Price | the price for 1 item/unit |
| Proportion | an equation stating that two ratios are equivalent |
| Proportional Relationship | exists when there is a constant ratio between two quantities |