Mathematics, 21.11.2020 02:20 yentel110306

10)P is the point (a, a – 2) and Q is the point (4 – 3a, –a). a Find the gradient of the line PQ.
b Find the gradient of a line perpendicular to PQ.
Given that the distance PQ is 105, find the two possible values of a.
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10)P is the point (a, a – 2) and Q is the point (4 – 3a, –a). a Find the gradient of the line PQ.