if the co-ordinates of the points P,Q,R are respectively (-7,5),(3,8),(-5,13) and if RN is perpendicular to PQ and RT parallel to PQ, find the equations of RN and RT ?
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1 Answers
Debotosh..
·2009-11-28 18:23:59
easy one,
,,,,use the fact that slope of ON is (-1/ slope of PQ) and it passes through R(-5,13)
....similarly for RT, whose slope is the same as PQ and it passes through R(-5,13)
{slope of PQ = 3/10}