maths
posted by salome .
Given the points A(1,7),B(7,5) and C(0,2).
(i)Find the equation of the perpendicular bisector of AB
(ii)Find the slope of BC

A(1,7), M(x,y), B(7,5), C(0,2).
1. x = (1+7) / 2 = 4.
y = (7+5) / 2 = 6.
m1 = (57) / (71) = 1/3.
m2 = (3/1) = 3. = Negative reciprocal of mi.
Y = mx + b.
3*4 + b = 6.
b = 6.
Eq: Y = 3x  6.
2. m = (25) / (07) = 1.
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