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Given: A(2,1), B(0,5), C(-1,2), AB and BC, mPAB = 1/2, mPBC = -1/3, midpoint of AB = (1,3), midpoint of BC = (-1/2, 7/2).
Find standard form equation of line perpendicular to BC through the midpoint___.
Use the formula m= y-y1/x-x1
A) -x+2y=5
B) -x-2y= -5
C) -c-3y= -10
D) -x-2y=6
E) -x-3y=10
