If the straight line `3x + 4y= 8` denoted by 'L' then the points `(2-5)` and `(-5,2)`

If the straight line 3x+4y=8 denoted by 'I'' then the points (2-5) and (-5,2)

The point P (a, b) lies on the straight line 3x – 2y = 13 and the point Q (b, a) lies on the straight line 4x – y = 5 then the equation of line PQ is

The vertex C of a triangle ABC moves on the line L-=3x+4y+5=0 . The co-ordinates of the points A and B are (2,7) and (5,8) The locus of centroid of DeltaABC is a line parallel to:

The point P(a,b) lies on the straight line 3x+2y=13 and the point Q(b,a) lies on the straight line 4x-y=-5 , then the equation of the line PQ is

If the straight lines x+2y=9,3x-5y=5 and ax+by=1 are concurrent , then the straight line 5x+2y=1 passes through the point