Answer:
Zero
Step-by-step explanation:
The formula to calculate slope is :
[tex]m=\frac{y_2-y_1}{x_2-x_1} \\[/tex]
We have two points ( 6 , -2 ) and ( 12 , -2 )
so now,
[tex]m=\frac{y_2-y_1}{x_2-x_1} \\\\m=\frac{-2-(-2)}{12-6} \\\\m=\frac{-2+2}{6}\\\\m=0/6\\m=0\\[/tex]
This means the line is parallel to x-axis , whenever the slope is zero the line is always parallel to x-axis and when the slope is undefined the line is always parallel to y-axis.
