Answer:
-5/3
Explanation:
The slope of the line between two points is the "rise" divided by the "run". That is, it is the ratio of the vertical change to the horizontal change.
It is usually convenient (but not necessary) to choose the horizontal change to be positive when finding slope from a graph.
When finding slope from a pair of point coordinates, you can do the math with the points in any order. The x- and y-values need to correspond, meaning if you subtract the first y-value from the second, you must also subtract the first x-value from the second.
slope = (change in y)/(change in x) = ∆y/∆x
... = (3-8)/(-4-(-7)) . . . . . . . . (difference of y-values)/(difference of x-values)
slope = -5/3