Find the value of k , if the straight lines `y-3kx+4=0 and (2k-1)x+ (8k-1) y -6=0` are perpendicular.

Find the value of k if the straight lines y-kx+4=0,(6k-3)x-(8k-1)y-6=0 are perpendicular.

The value of k if the straight lines 3x + 6y + 7 = 0 and 2x + ky = 5 are perpendicular is ……………………

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

Find the value of k for which the lines kx - 5y + 4 = 0 and 5x – 2y + 5 = 0 are perpendicular to each other

If the straight lines 2x + 3y - 3 = 0 and x + ky + 7 = 0 are perpendicular then the value of k is

If the straight lines 2x+ 3y -3=0 and x+ky +7 =0 are perpendicular, then the value of k is

If the straight lines 2x+ 3y -3=0 and x+ky +7 =0 are perpendicular, then the value of k is