Slope of a Line given points (5, 1) and (5, 3)

Given Coordinates: x1 = 5  y1 = 1,  x2 = 5  y2 = 3
Slope Formula: m  =  
y2 − y1/x2 − x1

Substitute the given coordinates into the Slope Formula and Simplify:
m  =  
3 − 1/5 − 5
m  =  
2/0

m  =  undefined
Therefore, the Slope of a Line given points (5, 1) and (5, 3) is undefined
Note: Since x1 = x2 (5 = 5), the slope of the line is undefined (m = undefined)

The solution above and other related solutions were provided by the Slope of a Line given Two Points Application.