Proportional Relationships

Front

Is the equation y = 14x showing proportionality?

Back

Yes, it shows proportionality because it can be expressed in the form y = kx.

Front

What does k represent in the equation y = kx?

Back

k represents the constant of proportionality.

Front

__________________ describes how many units of the first type of quantity corresponds to one unit of the second type of quantity.

Back

Unit rate.

Front

The constant of proportionality in the equation y = ½x is _______.

Back

1/2.

Front

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

Back

y = kx.

Front

What is a proportional relationship?

Back

A relationship where two quantities maintain a constant ratio.

Front

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

Back

3.

Front

How do you determine if two ratios are proportional?

Back

If the cross products are equal, the ratios are proportional.

Front

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

Back

20 miles per hour.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

2:3.