Ratios and Proportions 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 is constant.

Front

What is the equation form of a proportional relationship?

Back

The equation form of a proportional relationship is y = kx, where k is the constant of proportionality.

Front

What does the constant of proportionality (k) represent?

Back

The constant of proportionality (k) represents the ratio between the two quantities in a proportional relationship.

Front

If y = 5x, what is the constant of proportionality?

Back

The constant of proportionality is 5.

Front

How can you determine if a relationship is proportional from a table of values?

Back

A relationship is proportional if the ratios of corresponding values are constant.

Front

What is the constant of proportionality if y = 3x?

Back

The constant of proportionality is 3.

Front

If the constant of proportionality is 4, what is the proportional equation?

Back

The proportional equation is y = 4x.

Front

Is the relationship represented by the equation y = 2x + 3 proportional?

Back

No, this is not a proportional relationship because of the +3.

Front

What is the proportional relationship represented by the equation y = 10x?

Back

The proportional relationship is that y is 10 times x.

Front

If a table shows (1, 2), (2, 4), (3, 6), is this proportional?

Back

Yes, this is proportional with a constant of proportionality of 2.