### Home > A2C > Chapter 14 > Lesson 14.9.2.1 > Problem9-71

9-71.

Write a simplified expression for the slope of the line that goes through the points $\left(x, f^{ }\left(x\right)\right)$ and $\left(x + h, f^{ }\left(x + h\right)\right)$. The answer will be an algebraic expression, not a number. This expression should look familiar. What is another name for this expression?

$\frac{f(x+h)-f(x)}{(x+h)-x}$