Constant of Proportionality Review

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities, often represented as 'k' in the equation y = kx.

Front

How do you identify a proportional relationship in a graph?

Back

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

Front

What is the equation of a proportional relationship?

Back

The equation of a proportional relationship can be expressed as y = kx, where k is the constant of proportionality.

Front

What does a unit rate represent?

Back

A unit rate is a comparison of two quantities where the second quantity is one unit, such as miles per hour or cost per item.

Front

If y = 8x, what is the constant of proportionality?

Back

The constant of proportionality is 8.

Front

Which of the following represents a proportional relationship: (1,2), (2,4), (3,6)?

Back

Yes, all points represent a proportional relationship because they maintain the same ratio of 1:2.

Front

How can you determine if a table represents a proportional relationship?

Back

A table represents a proportional relationship if the ratios of the corresponding values are constant.

Front

What is the unit rate of 60 miles in 3 hours?

Back

The unit rate is 20 miles per hour.

Front

If the cost of 5 pounds of apples is $10, what is the cost per pound?

Back

The cost per pound is $2, which is the unit rate.

Front

What does it mean if a graph does not pass through the origin?

Back

If a graph does not pass through the origin, it does not represent a proportional relationship.