Q. 74.4( 15 Votes )

Show that the lin

Answer :

For two lines to be perpendicular, their product of slope must be equal to -1.

Given points are A(-2,6),B(4,8) and C(3,-3),D(5,-9)



Slope of line AB×slope of line CD = -1



-1 = -1
LHS = RHS


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