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OpenStudy (anonymous):
Determine if the lines that pass through the given points are parallel, perpendicular or neither. Line A: (2, 3) and (--4, 5) Line B: (-4, 9) and (-3, 12)
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OpenStudy (anonymous):
perpendicular?
OpenStudy (alexandervonhumboldt2):
parallel lines have same slope. perpendicular;ar lines have negative reciprocal slopes use slope formula: \[\frac{ y_1-y_2 }{ x_1-x_2 }\]
OpenStudy (alexandervonhumboldt2):
yeah
OpenStudy (alexandervonhumboldt2):
they are perpendicular
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