Math basics › Lines and systems
Parallel and perpendicular
Parallel
Same slope, different intercept. They never meet.
Perpendicular
Slopes multiply to −1, so each is the negative reciprocal of the other. If one is ⅔, the other is −³⁄₂.
Math basics › Lines and systems
Same slope, different intercept. They never meet.
Slopes multiply to −1, so each is the negative reciprocal of the other. If one is ⅔, the other is −³⁄₂.