Question

Calculate the slope of the line that passes through the points (1,3) (3,negative2)

Answer 1

(1,3), (3,-2) 

m=(y2-y1) / (x2-x1) where (x1 = 1) (y1= 3) (x2=3) (y2=-2)
m=(-2-3)/(3-1)
m=-5/2

therefore slope = -5/2

Answer 2

Slope is rise over run or (y₁-y₂)/(x₁-x₂)

(x,y)
(1,3)
(3,-2)

(3-(-2))/(1-3)=(3+2)/(1-3)=5/-2

slope is -5/2