Topic 2 Assessment Practice

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 quantity is constant.

Front

What does it mean if a graph is a straight line through the origin?

Back

It indicates that there is a proportional relationship between the two variables represented on the graph.

Front

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

Back

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

Front

How do you determine if two quantities are proportional using a graph?

Back

If the graph is a straight line that passes through the origin, the two quantities are proportional.

Front

What is the formula for finding the constant of proportionality from a proportional relationship?

Back

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

Front

If g is proportional to m, and g = 55.5m, what is the constant of proportionality?

Back

The constant of proportionality is 55.5.

Front

How do you find the amount of a substance per serving in a recipe?

Back

Divide the total amount of the substance by the number of servings.

Front

What is the equation that represents a proportional relationship between two variables?

Back

An equation of the form y = kx, where k is the constant of proportionality.

Front

If Rachel used 4.5 cups of juice for 12 people, how much juice is that per person?

Back

0.375 cups per person.

Front

If Art used 4.75 cups of juice for 10 people, how much juice is that per person?

Back

0.475 cups per person.