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

Show that the lines 2x + 3y - 8 = 0 , x - 5y + 9 = 0 and 3x + 4y - 11 = 0 are concurrent.

Show that the three straight lines 2x-3y + 5 = 0 , 3x + 4y - 7 = 0 and 9x- 5y + 8 = 0 meet in a point

Three straight lines 2x+11y-5=0, 24x+7y-20=0 and 4x-3y-2=0

For what value of K are the three st. lines : 2x+y-3=0, 5x + ky-3=0 and 3x-y-2=0 are concurrent ?

For what value of K are the three st. lines : 3x+y-2=0,kx+ 2y-3=0 and 2x-y-3=0 are concurrent ?

The straight lines x+y=0, 3x+y=4 and x+3y=4 form a triangle which is

Find the equation of the circle circumscribing the quadrilateral formed by the straight lines : x-y = 0, 3x + 2y = 5, x - y = 10 and 2x + 3y = 0 .

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

If the straight lines x+y-2=0,2x-y+1=0 and a x+b y-c=0 are concurrent, then the family of lines 2a x+3b y+c=0(a , b , c are nonzero) is concurrent at (a) (2,3) (b) (1/2,1/3) (c) (-1/6,-5/9) (d) (2/3,-7/5)

The lines x-y-6=0, 4x-3y-20=0 and 6x+5y+8=0 are: