Constant of Proportionality with Equations

Front

What is the formula for a proportional relationship?

Back

y = kx

Front

In what form is the equation of a proportional relationship?

Back

y = kx

Front

What does 'k' represent in the equation y = kx?

Back

The constant of proportionality.

Front

How can you find the constant of proportionality in a proportional relationship?

Back

By finding the unit rate.

Front

What is the unit rate in a proportional relationship?

Back

The ratio of the change in y to the change in x.

Front

If k = -0.45, what does this indicate about the relationship?

Back

The relationship is proportional and negative.

Front

What does it mean if there is 'none' for the constant of proportionality?

Back

The relationship is not proportional.

Front

How do you determine if a relationship is proportional?

Back

Check if the ratio of y to x is constant.

Front

What is an example of a proportional relationship in real life?

Back

The relationship between distance and time at a constant speed.

Front

What is the graphical representation of a proportional relationship?

Back

A straight line that passes through the origin.