Question

find the ratio in which lin e is formed by joining (-1,1) and (5,7) is divided by the line X+Y=4 ​

Answer 1

Answer:

let the ratio be k:1

now

coordinate of the point of intersection :

5K-1/+1+7K+1/=4

12K/K+1=4

12K =4k+4

8K=4

K=4/8=1/2

therefore

the line divide it in the ratio 1:2