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 quantity is constant.

Front

What does the constant of proportionality represent?

Back

The constant of proportionality represents the ratio between two proportional quantities, often denoted as 'k'.

Front

How do you find the constant of proportionality from a table?

Back

To find the constant of proportionality from a table, divide the value of one quantity by the corresponding value of the other quantity.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity of one.

Front

How do you calculate the unit rate from a given cost?

Back

To calculate the unit rate from a given cost, divide the total cost by the number of units.

Front

If a car travels 240 miles in 4 hours, what is the average speed?

Back

60 miles per hour.

Front

What is the formula for finding speed?

Back

Speed = Distance ÷ Time.

Front

If 3 pounds of apples cost $3.60, what is the cost per pound?

Back

$1.20 per pound.

Front

What is the relationship between unit rate and constant of proportionality?

Back

The unit rate is the same as the constant of proportionality in a proportional relationship.

Front

How can you identify a proportional graph?

Back

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