Proportional Relationships

Front

What does k represent in the equation y = kx?

Back

k represents the constant of proportionality.

Front

What is the constant rate of change?

Back

The constant rate of change is $41 per month.

Front

What is the constant of proportionality?

Back

The constant of proportionality is 15.

Front

Write an equation for this relationship if the constant of proportionality is 5.

Back

y = 5x.

Front

Which graph is non-proportional?

Back

Graph D is non-proportional.

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

How do you find the constant of proportionality from a table of values?

Back

Divide the value of y by the value of x for any pair of corresponding values.

Front

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

Back

The constant of proportionality is 3.

Front

What does a proportional graph look like?

Back

A proportional graph is a straight line that passes through the origin.

Front

If the constant of proportionality is 10, what is y when x = 4?

Back

y = 10 * 4 = 40.