C4 WJEC Past Paper Summer 2012 Q6

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The first cordinate found was (9, 6) however you've got (9, -6) in the last section, where you found all coordinates??

welshXemz
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These answers are wrong, a=1, b=3, c=c, so you get a p value of either -2 or -1. Thus the two coordinates are (1, -2) and (4, -4).

mileskemp