Question

line formed by joining (-1 ;1) and (5;7) is divided by a line x+y=4 in the ratio of?​

Answer 1

Answer:

Ratio= 1:2

Step-by-step explanation:

Let the ratio be k:1

Coordinates of P= [k (5)+1 (-1) /k+1, k (7)+1 (1) /k+1]

= (5k-1 /k+1, 7k+1 /k+1)

The coordinates of P must satisfy the equation x+y=4.

Putting the values of x and y coordinates,

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

12k/ k+1=4

12k= 4k+4

8k=4

k=1/2

k=1:2

Answer 2

Answer:

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