A12.9 Adv Weekly Review

Front

What is a proportional relationship?

Back

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

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant value (k) that relates two proportional quantities, often represented in the equation y = kx.

Front

If y = ¾x, what is the constant of proportionality?

Back

Front

What does it mean if a relationship is not proportional?

Back

If a relationship is not proportional, the ratio between the two quantities changes and does not remain constant.

Front

How can you identify a proportional relationship from a graph?

Back

A proportional relationship will graph as a straight line that passes through the origin (0,0).

Front

What is an example of a proportional relationship?

Back

If Colin has no savings and starts earning $10 each week doing chores, this is a proportional relationship.

Front

What is the formula for finding the constant of proportionality?

Back

The constant of proportionality (k) can be found using the formula k = y/x, where y and x are the two quantities.

Front

What does it mean for two quantities to be directly proportional?

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Two quantities are directly proportional if one quantity increases, the other quantity increases at a constant rate.

Front

What is an example of a situation that is not proportional?

Back

If Kaleb has $100 and gives $10 to charity each month until he has $20 left, this is not a proportional relationship.

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

Back

To determine if a set of data points represents a proportional relationship, check if the ratios of corresponding values are equal.