Hello,
As you have not provided the graph, I can teach you how to answer the question.
You are solving for the slope of the line. The slope can be found by using the following equation:
slope (signified by the variable <em>m</em>) = 
Note that the numbers does not exactly matter, only that what you set as variable
, the y inside that coordinate will also be
, and likewise for point 2.
For example, let us say your points for your line is (3 , 6) and (10 , 4)
Let:


Plug in the corresponding numbers to the corresponding variables:
slope 
The given points will result in a
slope.
Hope this helps!