Interpreting Proportional Relationships

Front

What makes a graph proportional?

Back

A proportional graph is a straight line that passes through the origin (0,0).

Front

What does the point (0,0) represent in the context of a proportional relationship?

Back

The point (0,0) represents that no quantity of the independent variable results in no quantity of the dependent variable.

Front

If Darron bikes 1 mile in 6 minutes, how long does it take him to bike 3 miles?

Back

18 minutes.

Front

What is the definition of 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

How can you determine if two quantities are proportional?

Back

Two quantities are proportional if their ratios are equal.

Front

What does a straight line on a graph indicate about the relationship between two variables?

Back

A straight line indicates a constant rate of change, meaning the variables are proportional.

Front

If a car travels 40 miles in 1 hour, how far will it travel in 3 hours?

Back

120 miles.

Front

What is the unit rate in a proportional relationship?

Back

The unit rate is the ratio of two measurements in which the second measurement is 1.

Front

How do you find the unit rate from a graph?

Back

The unit rate can be found by determining the slope of the line on the graph.

Front

What does it mean if a graph is curvy instead of straight?

Back

A curvy graph indicates that the relationship between the variables is not proportional.