Determine the relation of ab and cd given the following points: a (3, -4), b (5, -7), c (8, 3), and d (6, 6). a) parallel b) perpendicular c) coinciding d) neither

To find the relationship between the given lines, we have to find the slope of both lines using slope formula, which is

So for AB, we will get

And for CD , we will get

Since the slopes of the two lines are equal , and when slopes are equal , lines are parallel .

Correct option is A .