The slope (m) of a line in a linear equation.

## Find the Slope

- m = (y
_{2}- y_{1}) / (x_{2}-x_{1}) - rise/run
- Δy/Δx
- Δf/Δx
- f(x
_{2})-f(x_{1}) / x_{2}-x_{1} - the average rate of change of f(x) with respect to x.

(https://www.mathplanet.com/education/pre-algebra/graphing-and-functions/the-slope-of-a-linear-function, 18.01.1x)

## Topics

- Secant Line