Find the value of 'k' for which the pair of equations 2x-ky+3=0, 4x+6y-5=0 represent parallel lines.

For what value of 'k', the pair of equation 3x+4y+2=0 and 9x+12y+k=0 represent coincident lines.

The values of k for which the pair of linear equations 3x-2y=7 and 6x+ky+11=0 has a unique solution is ………..

Find the value of k if the straight lines 6x-10y+3=0 and kx-5y+8=0 are parallel.

For what value of P for the pair of equations 5x+6y+8 = 0, and 10x+12y+ P = 0 are coincident lines

For what value of 'k', the pair of equations 6x + 8y + 4 = 0 and 3x + 4y + k/3 = 0 represents coincident lines.

The number of values of k for which the linear equations 4x+ky+2z=0, kx+4+z=0, 2x+2y+z=0 posses a non zero solution is

Value of 'K' so that equation 16x^2+24xy+ly^2+kx--12y-21=0 . Represents a pair of parallel lines is