Here is a sample problem has to be perpendicular to y=(4/9)*x-2 and pass through 4,3,
y-b=m(x-a) slope of -9/4 is perpendicular to slope of 4/9, as y=4/9x-2 has slope 4/9. Our point is (4,3) therefore. y-3=-9/4*(x-4) y-3=-9/4x+9 y=-9/4x+9+3 y=-9/4x+12
