Radoc-Lactuan, I. et. al Analytic Geometry C. Show that the following sets of points belong to the same line. If they do not belong to the same line and decide whether the line defined by points A and B is perpendicular to the line through points B and C. 1. A(0,5), B(2, -5) and C(1, 0) 2. A(2, 6), B(-1, -5) and C(-12, -2) 3. A(0,-4), B(-2, 2) and C(8, 4)

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