Differential And Integral Calculus By Feliciano And Uy Chapter 4 Online

The authors also discuss the concept of a secant line, which is a line that passes through two points on the graph of a function. They show that as the two points get closer and closer, the secant line approaches the tangent line, and the slope of the secant line approaches the derivative.

Used for fractions. A common mnemonic for this is "Low d-High minus High d-Low, over Low-Low." The authors also discuss the concept of a