Proportional Relationships

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 constant of proportionality in the equation y = 14x?

Back

14

Front

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

Back

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

Front

What is the unit rate if the rate is 30 laps for 10 minutes?

Back

3 laps per minute

Front

Write the equation for a proportional relationship where y is 3 times x.

Back

y = 3x

Front

What does it mean if a relationship is not proportional?

Back

It means that the ratio between the two quantities is not constant.

Front

If y = kx, what does k represent?

Back

k represents the constant of proportionality.

Front

How can you find the constant of proportionality from a graph?

Back

The constant of proportionality is the slope of the line in a graph of a proportional relationship.

Front

What is the equation of a proportional relationship if the constant of proportionality is 5?

Back

y = 5x

Front

If a table shows the values (2, 4), (4, 8), (6, 12), is this a proportional relationship?

Back

Yes, it is proportional because the ratio of y to x is always 2.