Prove that the straight lines `4x+7y=9, 5x-8y+15=0 and 9x-y+6=0 are concurrent.

Show that the straight lines : x-y-1=0 , 4x+3y=25 and 2x-3y+1=0 are concurrent.

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

Show that the lines 3x-4y+5=0,7x-8y+5=0 and 4x+5y=45 are concurrent.

Prove that the lies 3x+y-14=0,x-2y=0 nad 3x-8y+4=0 are concurrent.

Show that the lines 3x-4y+5=0,7x-8y+5=0 and 4x+5y=45 are concurrent. Also find their point of intersection.

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

Show that the lines x-y=6, 4x-4y=20 and 6x+5y+8=0 are concurrent. Also find the point of intersection.

The value of k for which the lines 7x -8y +5=0, 3x-4 y+5 =0 and 4x+5y+k =0 are concurrent is given by

The straight lines x+2y-9=0,3x+5y-5=0, and ax+by-1=0 are concurrent,if the straight line 35x-22y+1=0 passes through the point (a,b)(b)(b,a)(-a,-b) (d) none of these