Proportional Relationships Test Review

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

How do you find the constant of proportionality?

Back

The constant of proportionality can be found by dividing one quantity by the other in a proportional relationship.

Front

If Mary walks 12.8 miles in 1.6 hours, how do you find her speed?

Back

Speed = Distance / Time = 12.8 miles / 1.6 hours = 8 miles per hour.

Front

What does the constant of proportionality represent in a graph?

Back

It represents the rate at which one quantity changes with respect to another, often interpreted as the slope of the line.

Front

Write the equation for a proportional relationship where y is the distance and x is the time, given Mary walks 12.8 miles in 1.6 hours.

Back

Front

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

Back

Two quantities are proportional if the ratios of their corresponding values are equal.

Front

Back

The solution is x = 40.

Front

If Marco bikes 15 miles in 1 hour, what is the constant of proportionality?

Back

The constant of proportionality is 15 miles per hour.

Front

What does it mean if two quantities are not proportional?

Back

It means that the ratio between the two quantities is not constant.

Front

How can you represent a proportional relationship with a graph?

Back

A proportional relationship can be represented by a straight line that passes through the origin.