[" If he lines "y=-3x+4,ay=x+10],[" and "2y+bx+9=0" represent three "],[" consecutive sides of a rectangle "],[" then "ab=]

If the lines y=-3x+4,ay=x+10 and 2y+bx+9=0 represent three consecutive sides of a rectangle then ab =

If the lines y=4-3 x, a y=x+10 and 2 y+b x+9=0 represent the three consecutive sides of a rectangle, then a b=

If the straight lines y=4-3x, ay=x+10, 2y+bx+9=0 represent the three consecutive sides of a rectangle then ab =

If the lines 3x+y+2=0, 2x-y+3=0, 2x+ay-6=0 are concurrent then a =

If three lines 3x-y=2, 5x+ay=3 and 2x+y=3 are concurrent, then a is equal to :

Prove that the three lines 5x+3y-7=0, 3x-4y=10, and x+2y=0 meet in a point.

If the straight lines 3x+4y+2=0,2x-y+3=0 and 2x+ay-6=0 are concurrent,then a=

The point (8,-9) with respect to the lines 2x+3y-4=0 and 6x+9y+8=0 lies on the same side of the lines the different sides of the line one of the line none of these