### Home > CALC > Chapter 8 > Lesson 8.1.1 > Problem 8-4

8-4.

Remember that

. Homework Help ✎

What does

*"dx"*by itself represent?What does the product

*f*(*x*)*dx*represent?

What is the connection between *dx* and Δ*x*?

What is the connection between *f*(*x*)*dx* and *f*(*a* + Δ*xi*)Δ*x*?