Proportional Relationships

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What is a proportional relationship?

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A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other is constant.

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CCSS.7.RP.A.2A

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How can you identify a proportional relationship from a graph?

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A graph represents a proportional relationship if it is a straight line that passes through the origin (0,0).

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CCSS.7.RP.A.2D

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What does it mean if a table represents a proportional relationship?

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If a table represents a proportional relationship, the ratios of the corresponding values in the two columns are constant.

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CCSS.7.RP.A.2A

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What is the equation of a proportional relationship?

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CCSS.7.RP.A.2C

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CCSS.7.RP.A.2C

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No, it does not represent a proportional relationship because it includes a constant term (5) that shifts the line.

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CCSS.7.RP.A.2C

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What is the constant of proportionality?

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CCSS.7.RP.A.2B

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How do you determine if a set of points represents a proportional relationship?

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To determine if a set of points represents a proportional relationship, check if the ratios of the y-values to the x-values are the same for all points.

Tags

CCSS.7.RP.A.2D

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What is an example of a proportional relationship in real life?

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An example of a proportional relationship is the relationship between distance and time when traveling at a constant speed.

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CCSS.7.RP.A.2A

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What does it mean if a graph does not represent a proportional relationship?

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If a graph does not represent a proportional relationship, it may be curved or not pass through the origin.

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CCSS.7.RP.A.2D