Practice 2.4 (Constant of Proportionality Flashcardizz)

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities, often represented as 'k'. It remains constant as the values change.

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

If 3 servings contain 624 calories, how many calories are in one serving?

Back

208 calories per serving (624 calories ÷ 3 servings = 208 calories/serving).

Front

What is the unit rate?

Back

The unit rate is a comparison of two different quantities when they are combined together. It is often expressed as a quantity per one unit of another quantity.

Front

How do you calculate the unit rate from a total cost and quantity?

Back

To calculate the unit rate, divide the total cost by the quantity. For example, if you spend $40 on 5 pounds of concrete, the unit rate is $8 per pound ($40 ÷ 5 pounds = $8/pound).

Front

What does 'k = 1.50' represent in proportional relationships?

Back

In proportional relationships, 'k = 1.50' indicates that for every unit of the first quantity, the second quantity is 1.50 times that amount.

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

If the constant of proportionality is 9, what does this mean?

Back

If the constant of proportionality is 9, it means that for every unit of the first quantity, the second quantity is 9 times that amount.

Front

How can you tell if a relationship is proportional?

Back

A relationship is proportional if the ratio between the two quantities is constant and can be expressed as a straight line through the origin on a graph.

Front

What is the formula for finding the constant of proportionality?

Back

The formula for finding the constant of proportionality is k = y/x, where y is the dependent variable and x is the independent variable.