Answer:
-The slope of the following graph:
or

Explanation:
-To find the slope you need this:

-So, according to graph the it shows that there are two point (1,-2) and (-2,7). To start from the first point to the second point, you need to count how far up or down (vertical) and how left or right (horizontal):
Rise: 9
Run: 3
or
Rise: 9
Run: -3
After you have the rise and the run, you need to solve the equation in order to get the slope:
or

or

So, therefore the slope of the following graph is
or
.