Which fraction shows a correct way to set up the slope formula for the line that passes through the points (3,7) and (5,7)?

Given two points (x₁,y₁) and (x₂,y₂) the slope of the line passes through these points is:
m=(y₂-y₁)/(x₂-x₁)

We have two points (3,7) and (5,7), therefore the slope of the line will be:
m=(7-7)/(5-3)=0/2=0

the fraction could be 0/2, the slope of the line that passes thorugh these points is 0.