Understanding Direct Variation

What is the fundamental characteristic of direct variation between two variables?

• One variable remains constant while the other changes.

• Both variables change independently.

• Both variables change in the same direction.

• One variable increases while the other decreases.

If you work more hours, what happens to your paycheck according to the concept of direct variation?

• It fluctuates randomly.

• It increases.

• It remains the same.

• It decreases.

How does the weight on a spring relate to the distance it stretches?

• The weight has no effect on the stretch.

• They are directly proportional.

• The stretch decreases as weight increases.

• They are inversely proportional.

What happens to the distance a car travels if its speed increases, assuming a constant time?

• The distance becomes unpredictable.

• The distance decreases.

• The distance remains the same.

• The distance increases.

Which of the following is an example of direct variation?

• The number of hours studied and the score on a test.

• The speed of a car and the time taken to reach a destination.

• The number of books read and the number of pages in each book.

• The temperature and the amount of ice cream sold.