Question

The coordinates of A, B, C, and D are A (-6, 1), B (-9, 4), C (-1, 1), and D (-7, 6). How are AB←→ and CD←→ related?





A. They are parallel lines.




B. They are intersecting lines but are not perpendicular.




C. They are perpendicular lines.




D. They are coincident lines.

Answer 1

@triciaal

Answer 2

closed but guess i'll answer anyway

Answer 3

parallel lines have the same slope and never meet. no intersections.
perpendicular lines meet at 90 degrees. the product of the slopes = -1.
intersecting lines have at least on set of values (x,y) that satisfies both equations.
coincident lines are really just one line usually one is a factor of the other so all the (x,y) values work or both lines

start by plotting the points to "see" what you have then Identify AB and CD and check the above conditions