Exercise 1 Page 192

Observing the given graph, we can see that the line passes through the points $J(\text{-}2,3)$ and $K(3,\text{-}2).$ One way to use a graph to find the slope of a line is to count out the change in $x$ and $y.$

We can see that as the graph travels from left to right, the $\text{rise},$ or change in $y,$ is $\text{-}5.$ Similarly, the $\text{run},$ or change in $x,$ is $5.$ We can confirm this answer by using the other method, the Slope Formula. We will use the given points to solve for the slope. A slope of $m=\text{-}1$ means that for every $1$ step in the positive horizontal direction, the graph travels $1$ step in the negative vertical direction.