Find the value of `k` ,if `3x+ky-1=0,7x-3y+3=0` are perpendicular

Find the value of K for which line 7x+ 5y = 4 is perpendicular on line (2x+3y+4) +K (6x-y+2)=0

The lines 3x+4y+7=0 and 4x+3y+5=0 are perpendicular.

Find the solution of 3x-5y+1=0,-7x+3y+15=0

Find the values of k for which the length of perpendicular from the point (4,1) on the line 3x-4y+ k=0 is 2 units

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

Find the value of k so that the lines 3x-y-2=0, 5x+ky-3=0 and 2x+y-3=0 are concurrent.

Find the value of k , if kx + 3y = k - 3 and 12 x + ky = k represent coincident lines .

Find the equation of a straight line passing through the point of intersection of the lines : 3x+y-9=0 and 4x+3y-7=0 and perpendicular to the line 5x-4y+1=0

Find k so that the line 2x + ky – 9 = 0 may be perpendicular to 2x + 3y – 1 = 0