Proportional Relationships in Tables

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

How can you tell if a table shows a proportional relationship?

Back

A table shows a proportional relationship if the ratios of the corresponding values are equal.

Front

If you travel 150 miles on 5 gallons, how far do you travel per gallon?

Back

30 miles

Front

What is the equation that represents a proportional relationship where y is directly proportional to x?

Back

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

Front

What does the constant of proportionality represent?

Back

The constant of proportionality represents the ratio between two proportional quantities.

Front

If a table shows the values (2, 6), (4, 12), (6, 18), is this proportional?

Back

Yes, because the ratio of y to x is always 3.

Front

What is the missing number if the proportional relationship is y = 3x and x = 2?

Back

6

Front

Which statement best describes the relationship between x and y in the table: (1, 3), (2, 6), (3, 9)?

Back

Proportional, because the ratio of y to x is always 3.

Front

What is the formula to find the unit rate?

Back

Unit rate = Total quantity / Number of units.

Front

If a recipe calls for 4 cups of flour for 2 cakes, how much flour is needed for 1 cake?

Back

2 cups of flour.