Proportional Relationships
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Graph
A graph of the set of ordered pairs that are solutions of the equation.
Proportion
An equation that states that two ratios are equivalent.
Proportional Relationship
Is a relationship between two quantities in which the ratio of one quantity to the other quantity is constant.
Constant of Proportionality.
The equation for a proportional relationship has a special for. If the relationship between x and y is a proportional relationship, then the equation for the relationship may be written as y = ax, where a is a positive number. The constant a is called the constant or proportionality.
Ratio
a comparison of two numbers by division
Table
a set of data arranged in rows and columns
Common Ratio
the ratio of successive terms of a geometric sequence