Question: 10 P is the point (a, a - 2) and Q is the point (4 -3a, -a). a Find the gradient of the line PO.

10 P is the point (a, a - 2) and Q is the point (4 -3a, -a). a Find the gradient of the line PO. b Find the gradient of a line perpendicular to PO. c Given that the distance PO is 10v5, find the two possible values of a

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