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# Module 1 Vocabulary

### Rate, Unit Rate and Proportional Relationships on tables, graphs & word problems

TermDefinition
RATE The comparison of two different units of measurement.
UNIT RATE The comparison of two different units of measurement where the second unit of measurement is always singular or 1.
PROPORTIONAL RELATIONSHIP A relationship between the input and output units of measurement that are related by a constant of proportionality.
CONSTANT OF PROPORTIONALITY Describes a proportional relationship when all of the unit rates calculated in a problem have the same value.
INPUT The value of the units of measurement that are represented on the x-axis on a graph and in the x column of a table. Units of Measurement include TIME
OUTPUT The value of the units of measurement that are represented on the y-axis on a graph and in the y column of a table. Units of Measurement include MONEY and DISTANCE
CONSTANT RATE A list of unit rates that are the same value.
ORIGIN The point where the x and y axis meet. The coordinate is (0,0)
MULTIPLICATIVE RELATIONSHIP Description of a proportional relationship where the input is always multiplied by the constant unit rate to generate the output.
EQUATION Two expressions made up of numbers, variables and math operations that are equal to each other.
VARIABLE A letter that represents a value we do not know
UNITS OF MEASURE A value of time, distance, money and weight.
Created by: kkeenliside
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