Proportional Relationships Flashcard- Math 7A

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?

Back

The constant of proportionality is the constant value (k) that relates two proportional quantities, often expressed as y = kx.

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 k = 2, what does this mean in a proportional relationship?

Back

If k = 2, it means that for every unit increase in x, y increases by 2 units.

Front

What is the formula for finding a missing value in a proportional relationship?

Back

The formula is y = kx, where k is the constant of proportionality.

Front

How do you compare speeds in a proportional relationship?

Back

To compare speeds, convert them to the same unit and compare the ratios.

Front

If Samantha drives at 30 mph and Tracy drives 60 miles in 2 hours, who drives faster?

Back

They drive the same speed per hour.

Front

What is the simplest form of a ratio?

Back

The simplest form of a ratio is when the numbers are reduced to their smallest whole number values.

Front

How do you calculate earnings based on hours worked in a proportional relationship?

Back

Multiply the hourly rate by the number of hours worked.

Front

If Dalila earns $108.75 for 15 hours, how much does she earn per hour?

Back

She earns $7.25 per hour.