Module 4-4.3 Ratios and Proportionality

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Question Answer
RateA ratio that compares two quanities measured in different units.
Unit RateA rate in which the second quanity in the comparison is one unit.
ConstantA value that does not change.
Constant of ProportionalityA constant ratio of two varibales related proportionally.
Equivalent RatiosRatios that name the same comparison.
PercentA ratio comparing a number to 100.
Proportionis a statement that two rates or ratios are equivalent.
Rate of Changeis a rate that describes how one quantity changes in relation to another quantity.
Proportional Relationshipbetween two quanities is one which the rate of change is constant or one in which the ratio of one quantity to the other is constant.
Porportional relationship decribing wordsper or for each
The proportional relationship between x and yk=y/x.