constant of proportionality

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio y/x in a proportional relationship.

Front

How do you find the unit rate?

Back

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

Front

If 15 pizzas cost $97.50, what is the unit rate per pizza?

Back

$6.50 per pizza.

Front

What does it mean for a graph to be proportional?

Back

A graph is proportional if it passes through the origin and has a constant slope.

Front

Is the relationship represented by the table proportional if the constant is 3?

Back

Yes, the relationship is proportional.

Front

How do you determine if a graph is proportional?

Back

Check if the line passes through the origin and if the ratio of y to x is constant.

Front

What is the unit rate of 624 calories in 3 servings?

Back

208 calories per serving.

Front

What is the formula for finding the constant of proportionality?

Back

The constant of proportionality is found using the formula k = y/x.

Front

If a table shows values (1, 3), (2, 6), (3, 9), is it proportional?

Back

Yes, it is proportional with a constant of 3.

Front

What does a non-proportional graph look like?

Back

A non-proportional graph does not pass through the origin and has varying slopes.