Question

The co-ordinates of points A and B are (1,2) and (2,3). Find the co-ordinates of a point R

lying on line segment AB so that AR/ RB = 4/3.


plz help me it's urgent ​

Answer 1

Step-by-step explanation:

Using the section formula, if a point (x,y) divides the

line joining the points (x

1

,y

1

) and (x

2

,y

2

) in the ratio m:n, then (x,y)=(

m−n

mx

2

−nx

1

,

m−n

my

2

−ny

1

)

Substituting (x

1

,y

1

)=(1,2) and (x

2

,y

2

)=(2,3) and m=4,n=3 in the section formula, we get

R=(

4+3

4(2)+3(1)

,

4+3

4(3)+3(2)

)=(

7

11

,

7

18

)