A, B and C have coordinates (2, 9),(10, −7) and (6, p) respectively. Line AB is perpendicular to line BC. Then the value of p is
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Answer:
(2,9)A____________C(10,-7)____________B(6, p)
cordinates of ABC of x = 2+10+6/3
=6
coordinates of ABC of y = 9+(-7) +p/3
= 2+p/3
and the final ans is (-9)
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