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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 |