Answer
$m=-1$
Work Step by Step
To find the slope, we use the formula $m=\frac{y_2-y_1}{x_2-x_1}$.
We plug in the $x$ and $y$ values shown in the graph: $m=\frac{1-2}{3-2}$
We simplify above and below the fraction bar with subtraction: $m=\frac{-1}{1}$
Then, we divide the fraction: $m=-1$
