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 is constant.

Front

What is the constant of proportionality in the equation y = kx?

Back

The constant of proportionality is the value 'k' that relates y to x.

Front

How do you determine if a table represents a proportional relationship?

Back

A table represents a proportional relationship if the ratios of y to x are constant for all pairs of values.

Front

What is the unit rate?

Back

The unit rate is the ratio of two measurements in which the second measurement is 1.

Front

If y = 5x, what is the constant of proportionality?

Back

The constant of proportionality is 5.

Front

Write the equation for a proportional relationship where the constant of proportionality is 4.

Back

y = 4x.

Front

What does it mean if a graph passes through the origin?

Back

If a graph passes through the origin, it indicates a proportional relationship between the variables.

Front

How can you find the unit rate from a given rate?

Back

To find the unit rate, divide the total quantity by the number of units.

Front

If the constant of proportionality is 2, what is the value of y when x = 3?

Back

y = 2 * 3 = 6.

Front

What is the equation for a proportional relationship with a constant of proportionality of 1/2?

Back

y = (1/2)x.