Module 4 Review: Proportional Relationships

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 the cost of 4 pounds of grapes is $24.36, what is the constant of proportionality?

Back

The constant of proportionality is $6.09 per pound.

Front

Which line shows a proportional relationship between x and y?

Back

Line L shows a proportional relationship.

Front

A proportional relationship can be written as an equation in the form ____ = _____  _____

Back

y = kx.

Front

What is the constant of proportionality if a store sees 120 customers in 8 hours?

Back

The constant of proportionality is 15 customers per hour.

Front

Define 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 does the variable 'k' represent in the equation y = kx?

Back

'k' represents the constant of proportionality.

Front

If y = 3x, what is the constant of proportionality?

Back

The constant of proportionality is 3.

Front

How can you determine if a relationship is proportional from a graph?

Back

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

Front

What is the unit rate in a proportional relationship?

Back

The unit rate is the constant of proportionality expressed as a quantity per one unit of the other quantity.