9709 P13 - Jun 2014 - Q11
614
The diagram shows a parallelogram ABCD, in which the equation of AB is y = 3x and the equation of AD is 4y = x + 11. The diagonals AC and BD meet at the point E \\(\left( 6 \frac{1}{2}, 8 \frac{1}{2} \right) \\). Find, by calculation, the coordinates of A, B, C, and D.
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