How to tell if lines are parallel, perpendicular or neither?

1.	How to tell if lines are parallel, perpendicular or neither?
Answer» <strong> Lines with the same slope are parallel and if the slope of one line is the negative reciprocal of the second line, then they are perpendicular.</strong><p><a href="https://www.cuemath.com/geometry/parallel-lines/">Parallel lines</a>are the lines that never intersect and perpendicular lines are the lines that intersect at 90 degrees.</p>

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