Question 910078
the perpendicular slope of a line is -1/m<-original slope
5/4=>-4/5
use point slope formula
y-y1=m(x-x1)
y--2=(-4/5)(x-4)
y+2=-4/5x+16/5
y=-4/5x+6/5 <=slope form
standard form: 4x+5y=6