9709 P13 - Nov 2010 - Q2 - 4 marks
111
Points A, B, and C have coordinates (2, 5), (5, -1), and (8, 6) respectively.
(i) Find the coordinates of the midpoint of AB.
(ii) Find the equation of the line through C perpendicular to AB. Give your answer in the form ax + by + c = 0.
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