To find the slope of the line that passes through the points (2,13) and (4,5) we can use our slope formula.
m = [tex]\frac{y2 - y1}{x2 - x1}[/tex]
[tex]\frac{5 - 13}{4 - 2}[/tex]
5 - 13 = -8
4 - 2 = 2
Therefore, the slope of this line is[tex]\frac{-8}{2}[/tex]
[tex]\frac{-8}{2}[/tex] can be simplified to -4.