Proportionality Test

Front

What is the definition of proportionality?

Back

Proportionality refers to a relationship between two quantities where their ratio remains constant.

Front

What is the constant of proportionality?

Back

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

Front

How do you determine if a relationship is proportional?

Back

A relationship is proportional if the ratio of the two quantities is constant across all pairs of values.

Front

What is the unit rate?

Back

The unit rate is the ratio of two measurements in which the second quantity is one unit.

Front

If 100 is earned for each hour worked, what is the unit rate?

Back

The unit rate is $100 per hour.

Front

What is the equation for a proportional relationship?

Back

The equation for a proportional relationship is y = kx, where k is the constant of proportionality.

Front

If k = 6, what does this mean in a proportional relationship?

Back

It means that for every unit increase in x, y increases by 6 units.

Front

What is the constant of proportionality if 40 is earned for every hour worked?

Back

The constant of proportionality is 40.

Front

How can you find the constant of proportionality from a graph?

Back

You can find it by determining the ratio of y to x for any point on the line.

Front

What does it mean if a table shows a constant ratio?

Back

It means that the relationship represented in the table is proportional.