Question

show that the line x-2y-7=0 and 2x+y+1=0 are perpendicular to each other. find point of intersection​

Answer 1

Step-by-step explanation:

》x-2y-7=0

》2y=x-7

》y=x/2-7/2

》m1=1/2

now,

》2x+y+1=0

》y=-2x-1

》m2=-2

●SINCE,

m1.m2=1/2. (-2)=(-1)

therfore,,, line x-2y-7=0&2x+y+1=0 are perpendicular to each other

hope it helps............thank you. ...