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Test 6 Review
Slope, Constant Rate of Change
| Term | Definition |
|---|---|
| Slope | rise (change in y) over run (change in x) |
| Positive Slope | line goes up from left to right |
| Negative Slope | line goes down from left to right |
| Zero Slope | horizontal line |
| Undefined Slope | vertical line |
| Constant Rate of Change | also known as slope; change in y over change in x |
| Proportional Relationship | exists when there is a constant ratio between two quantities |
| Constant of Proportionality | the constant ratio to which a proportional relationship simplifies |
| Direct Variation | exists when there is a constant ratio between two quantities |
| Constant of Variation | the constant ratio to which a direct variation simplifies |
| Unit Rate | A rate in which the second quantity is 1. In a proportional relationship, the unit rate is the same as the constant of proportionality |