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OpenStudy (anonymous):
The slope of a line that is perpendicular to a line whose slope is -2/7 is -2/7 -7/2 7/2
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OpenStudy (bibby):
Perpendicular lines have slopes that are negative reciprocals of the original slope. What is the negative reciprocal of -2/7?
OpenStudy (bibby):
Do you know what a reciprocal is?\[\frac{ 45 }{8} -> \frac{ 8 }{45 }\]
OpenStudy (anonymous):
no not really sure
OpenStudy (bibby):
Are you typing something or should I explain?
OpenStudy (bibby):
Taking the reciprocal means "flipping" a number.|dw:1386568460978:dw|
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