What is first derivative used for?

Related questions

1. How are derivatives useful?
2. What are derivatives used for in the real world?
3. What is the difference between limits and derivatives?
4. What do first and second derivatives tell us?
5. What is the derivative equation?
6. Why do we use derivatives?
7. What is a derivative in real life?
8. What does 2nd derivative tell you?
9. What does the second derivative tell you?
10. What is the difference between function and limit?

Tags

1. #increasing
2. #tells
3. #first
4. #change
5. #derivative
6. #about
7. #slope
8. #decreasing
9. #direction
10. #instantaneous
11. #going
12. #function
13. #primarily
14. #interpreted
15. #tangent