A variable point P(t,1−2t) is joined to the fixed point Q(4,3).
(i) Obtain the equation of the line PQ in general form in terms of the parameter t.
(ii) Determine the value of t for which PQ is perpendicular to the line 2x+3y−7=0.
(iii) For the value of t found in part (ii), calculate the x–intercept and y–intercept of PQ.