m ab = 2 , m cd =2, Parallel.
1) Given A(-9,-12), B(-2,2) let's find the slope of AB
2) Given C(-1,6), D(-5,-2) let's find the slope of CD
3) Line type
Since the slope determines whether it is parallel, perpendicular, or neither by checking both slopes. As they are identical, we can state that these lines are parallel to each other.