Respuesta :

ejelonubenedict
condition for perpendicularity
m=-1/M
so the gradient for the point
from y= -4/7x-3/7

so m=-1(-4/7) = 7/4

so the eqn is
y-y1/(x-x1) = m
y-1/x-(-2)= 7/4
y-1/x+2=7/4
4(y-1)=7(x+2)
4y-4=7x+14
4y-7x-4-14=0
4y-7x-18=0