Answer:
C. 2/7
Explanation:
Parallel lines are lines that have the same slopes.
We know that line l is parallel to line m.
Therefore, the slope of line l is equal to the slope of line m.
![m_(l) =m_(m)](https://img.qammunity.org/2021/formulas/mathematics/college/t6nynuazprzalhhzhaqb0gjibjbq0lvtvn.png)
We know that line l has a slope of 2/7.
![(2)/(7) =m_(m)](https://img.qammunity.org/2021/formulas/mathematics/college/346xln94ddaw7owlglyhnrryha20agic6w.png)
So, line m also has a slope of 2/7. The answer is C. 2/7