1. The number amount of your paycheck varies directly with the number of hours you work.
- This is a direct variation because as the number of hours increases, the paycheck amount increases proportionally.
2. The area of the garden varies jointly with the width and length of the plot.
- This is a joint variation because the area depends on two variables (width and length) and increases as both increase.
3. The amount of time spent driving to your destination varies inversely with the distance you have to drive.
- This is an inverse variation because as the distance increases, the time spent driving decreases, assuming constant speed.
Parent Tip: Review the logic above to help your child master the concept of direct inverse and joint variation worksheet answers.