Find the value of `k` if the straight line `2x+3y+4+k(6x-y+12)=0` is perpendicular to the line `7x+5y-4=0.`

If the line x-3y+5+ k(x+y-3)=0 , is perpendicular to the line x+y=1 , and k .

Is the line 3x + 4y + 7 = 0 perpendicular to the line 28x - 21y + 50 = 0 ?

Find the value of k such that the line (k-2)x+(k+3)y-5=0 perpendicualr to 2x-y+7=0 .

The value of the lambda if the lines (2x+3y+4)+lambda(6x-y+12)=0 are

Find the equation to the straight line which passes through the point of intersection of the straight lines x+2y=5 and 3x+7y=17 and is perpendicular to the straight line 3x+4y=10

What is the equation of the straight line which passes through the point of intersection of the straight lines x+2y=5 and 3x+7y=17 and is perpendicular to the straight line 3x+4y=10 ?

Find the equation of the straight line which passes through the point of intersection of lines 3x-4y-7=0 and 12x-5y-13=0 and is perpendicular to the line 2x-3y+5=0

If the straight lines 3x-5y=7and4x+ay+9=0 are perpendicular to one another, find the value of a.

Find the value of k if the line 3x-4y=k is a tangent to x^(2)-4y^(2)=5

Find the equation of the line passing through the point of intersection of the lines x+5y+7=0 and 3x+2y-5=0 (b) perpendicular to the line 7x + 2y - 5 = 0