Step-by-step explanation:
let L1 amd L2 are perpendicular lines then their
slope product is -1
first write the equation in the form Y=mX+b
L1;3x+4y=-4
y=-4-3x/4
Y=-3/4X-1
slope m1=-3/4
m1*m2=-1
m2=-1/m1=4/3
y-y1=m(x-x1)
y-(-1)=4/3(x-2)
y+1=4/3(x-2)
3y+3=4x-8
3y-4x=-11 is the equation of perpendicular lines.