The number of values of p for which the lines `x+ y - 1 = 0, px + 2y + 1 = 0` and `4x + 2py + 7 = 0` are concurrent is equal to

Find the value of m for which the lines 4x -3y - 1 = 0, 3x - 4y + 1 = 0 and mx - 7y + 3 = 0 are concurrent.

If the lines x +3y -9 = 0, 4x + by -2 = 0 and 2x -y -4 = 0 are concurrent , the b is equal to

If the lines x - y - 1 = 0, 4x + 3y = k and 2x – 3y +1 = 0 are concurrent, then k is

The sum of all the values of p for which the lines x+y-1=0, px+4y+2=0 and 4x+py+7=0 are concurrent is euqal to

The sum of all the values of p for which the lines x+y-1=0, px+4y+2=0 and 4x+py+7=0 are concurrent is euqal to

Three lines px + qy+r=0, qx + ry+ p = 0 and rx + py + q = 0 are concurrent of

The number of values of a for which the lines 2x+y-1=0,ax+3y-3=0, and 3x+2y-2=0 are concurrent is 0(b)1(c)2 (d) infinite

The number of values of a for which the lines 2x+y-1=0 , a x+3y-3=0, and 3x+2y-2=0 are concurrent is (a).0 (b) 1 (c) 2 (d) infinite

The number of values of a for which the lines 2x+y-1=0 , a x+3y-3=0, and 3x+2y-2=0 are concurrent is 0 (b) 1 (c) 2 (d) infinite

Prove that the straight lines y - x + 1 = 0, 2y - x - 1 = 0 and 7x -y - 19 = 0 are concurrent.