- Determine the types of variation of the following practical situation: write A for direct variation, B for inverse variation, C for joint variation and D for combined variation.
1. The number of hours you work and the amount of your paycheck.
2. The law of universal gravitation.
3. The amount of weight on a spring and the distance the spring will stretch. 4. The formula for finding the volume of a cylinder.
5. The speed of a car and the distance travelled in a certain amount of time.
6. The cost of a pencil and the number of pencils you buy.
7. The number of days required to build a bridge to the number of workers.
8. More men at work, less time to finish the work.
9. If there are more people sharing a given amount, then each person will get less.
10. If you travel a distance at a slower speed the time taken will increase.​