Unit 3: Ratios and Proportional Relationships
Terms in this set (27)
A comparison of two quantites by division.
A ratio that compares two quantities measured in different units.
A rate in which the second quantity in the comparison is one unit.
Ratios that name the same comparison.
An equation that states that two ratios are equivalent.
The product of numbers on the diagonal when comparing two ratios.
A ratio comparing a number to 100.
An input-output relationship that has exactly one output for each input.
The value substituted into an expression or function.
The value that results from the substitution of a given input into an expression or function.
Figures with the same shape but not necessarily the same size are similar.
Matching sides of two or more polygons.
Matching angles of two or more polygons.
The technique of using similar figures and proportions to find a measure.
A proportional model of a three-dimensional object.
The ratio used to enlarge or reduce similar figures.
The ratio between two sets of measurements.
A drawing that used a scale to make an object smaller than or larger than the real object.
A linear relationship between two variables that can be written in the form of y=kx.
Constant of Proportionality
Constant value of the ration of proportional quantites x and y.
Percent of Change
The amount, in percent, that a number increases or decreases.
A fee paid to a person for making a sale.
The fee paid to a person who makes a sale expressed as a percent of the selling price.
The amount of money charged for borrowing or using money, or the amount of money earned by saving money.
A fixed percent of the principal.
The inital amount of money borrowed or saved.
Rate of Interest
The percent charged or earned on an amount of money.
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