11.Direct and Inverse Proportions Quiz

Identify a real-life scenario that represents a direct proportion.

• Number of people and amount of food needed for a party

• Temperature and volume of a gas at constant pressure

• Number of hours worked and amount of money earned

• Distance traveled and time taken in a constant speed journey

In a direct proportion, what happens to one quantity as the other quantity increases?

• It becomes negative

• It stays the same

• It decreases

• It increases

Give an example of a direct proportion from everyday life.

• The more hours you work, the more money you earn.

• The more you eat, the less hungry you feel.

• The more you exercise, the more weight you gain.

• The more you study, the less you learn.

Explain how you can identify a direct proportion from a given set of data.

• By observing that as one variable increases, the other variable also increases at a constant rate.

• By observing that as one variable increases, the other variable decreases.

• By observing that as one variable increases, the other variable decreases at a constant rate.

• By observing that as one variable increases, the other variable remains constant.

What is the relationship between two quantities in a direct proportion?

• One increases while the other decreases

• They have no relationship

• They increase or decrease together

• They move in opposite directions

Identify a real-life scenario that represents an inverse proportion.

• Distance traveled and the speed of the vehicle

• Amount of rainfall and the number of umbrellas sold

• Number of students and the amount of food consumed

• Time taken to complete a task and the number of people working on it

In an inverse proportion, what happens to one quantity as the other quantity increases?

• Stays the same

• Decreases

• Fluctuates

• Increases

Give an example of an inverse proportion from everyday life.

• The connection between the temperature and the amount of ice cream consumed

• The correlation between the number of hours spent studying and the grade achieved

• The example of an inverse proportion from everyday life is the relationship between the time taken to complete a task and the number of people working on it. As the number of people increases, the time taken to complete the task decreases, and vice versa.

• The relationship between the amount of rain and the number of umbrellas sold

Explain how you can identify an inverse proportion from a given set of data.

• Observing that as one variable increases, the other variable also increases

• Observing that as one variable increases, the other variable decreases in a consistent manner.

• Noticing that the two variables remain constant regardless of changes in each other

• Identifying that the two variables have no relationship to each other

What is the relationship between two quantities in an inverse proportion?

• As one quantity increases, the other quantity decreases

• The two quantities are not related to each other

• As one quantity increases, the other quantity also increases

• The relationship between the two quantities does not change