Question

(4)Find d(A,B),if co-ordinates of A and Bare - 7 and 5 respectively. *​

Answer 1

Step-by-step explanation:

ANSWER

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

points (x

1

,y

1

) and (x

2

,y

2

) internally

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

)=(4,−3) and (x

2

,y

2

)=(−1,7) and m=3,n=2 in the section formula, we get

the abscissa of the point (

3+2

3(−1)+2(4)

)=1