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 2 years ago
AB passes through the points (1, 3) and (3, 17). If CD is perpendicular to AB, what is the slope of CD?
 2 years ago
AB passes through the points (1, 3) and (3, 17). If CD is perpendicular to AB, what is the slope of CD?

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sarah43
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1342657794830:dw so if AB's slope is 7, CD's is 1/7 because perpendicular lines have opposite slopes

sarah43
 2 years ago
Best ResponseYou've already chosen the best response.1ur welcome :). just remember to choose a best response :)
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