Line segment are parallel to each other if their slopes are congruent. Thus, option (D) is correct.
There are three types of relation exist for two lines, the relations are as follows:
- Intersecting Lines.
- Coinciding Lines.
- Parallel lines.
If the lines intersect each other, then their slope must be different from one another.
If the lines are coinciding, then both the lines are same line and have similar equation.
If the lines are parallel to each other, then their slopes must be equal to one another.
Hence, option (D) is correct.
To know more about the parallel lines, please refer to the link:
https://brainly.com/question/20263406
