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OpenStudy (anonymous):
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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ganeshie8 (ganeshie8):
start wid calculating slope of AB
ganeshie8 (ganeshie8):
do u knw the slope formula
OpenStudy (anonymous):
HOLD ON I GOT DIS.
OpenStudy (anonymous):
Slope is 7 @ganeshie8 ?
ganeshie8 (ganeshie8):
yep, slope of AB = 7
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ganeshie8 (ganeshie8):
since CD is perpendicular to AB, the product of slopes will be -1 lets say slope of CD = x x*7 = -1 x = ?
OpenStudy (anonymous):
x = -1/7?
ganeshie8 (ganeshie8):
correct !
OpenStudy (anonymous):
Thank you again!
ganeshie8 (ganeshie8):
np.. yw
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