Answer
$m= -\frac{2}{5}$
Work Step by Step
Use the points. $(x_1,y_1) = (0,4)$ and $(x_2,y_2)= (10,0)$. to find the slope of the line. The slope, $m$, of the line is \begin{equation}
\begin{aligned}
m& = \frac{y_2-y_1}{x_2-x_1}\\
& =\frac{0-4}{10-0}\\
&=-\frac{4}{10}\\
&= -\frac{2}{5}.
\end{aligned}
\end{equation} The slope of the line is $m= -\frac{2}{5}$.
