9709 P12 - Nov 2015 - Q6 - 8 marks
90
Points A, B, and C have coordinates A(-3, 7), B(5, 1), and C(-1, k), where k is a constant.
(i) Given that AB = BC, calculate the possible values of k.
The perpendicular bisector of AB intersects the x-axis at D.
(ii) Calculate the coordinates of D.
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