Answer: slope = 0
Step-by-step explanation:
The formula for calculating slope is given as :
m = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
[tex]x_{1}[/tex] = 2
[tex]x_{2}[/tex] = 1
[tex]y_{1}[/tex] = 0
[tex]y_{2}[/tex] = 0
Substituting into the formula , we have
m = [tex]\frac{0}{-1}[/tex]
m = 0