Exercise43

Evaluate

\begin{equation*} \displaystyle\frac{y_2 - y_1}{x_2 - x_1} \end{equation*}

for $$x_1 = 14\text{,}$$ $$x_2 = -6\text{,}$$ $$y_1 = 13\text{,}$$ and $$y_2 = -13\text{:}$$

in-context