Proportional Relationship 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 in the equation y = 14x?

Back

14

Front

Write an equation for a proportional relationship where y is 5 times x.

Back

y = 5x

Front

Does the graph of a straight line through the origin represent a proportional relationship?

Back

Yes

Front

If b represents the number of concrete blocks and w represents the weight, what is the equation relating them if each block weighs 28 pounds?

Back

28b = w

Front

Which of the following equations represents a proportional relationship: y = x + 3 or y = 7x?

Back

y = 7x

Front

What does it mean if two quantities are directly proportional?

Back

It means that as one quantity increases, the other quantity increases at a constant rate.

Front

How can you identify a proportional relationship from a table of values?

Back

If the ratios of corresponding values are constant, then the relationship is proportional.

Front

What is the graphical representation of a proportional relationship?

Back

A straight line that passes through the origin.

Front

If y = kx, what does k represent?

Back

k represents the constant of proportionality.