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straight line

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sounak
Posted: Wednesday, January 02, 2008 2:27:07 PM

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In coordinate geometry we know that  when two st. lines are perpendicular to each other then  the condition. is m1 x m2  = _1  .(where m1&m2 are slopes)Then when X axis is always perpendicular to Y axis  the condn doesn't satisfies as ---

                  0 X  _1as slope of x axis is 0, & of y axis is )

pl. pl. give the ans. U can give it at my e-mail i.d. also

sounak.sahu@rediffmail.com
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rakeshguptakk
Posted: Sunday, July 11, 2010 6:40:08 PM
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a mathematical proved fact,,,,,,,,,,,,if the slop product of two lines is -1 then it is exactly perpendicular but inverse is not always true
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