find the coordinates of the point dividing the line segment joining points A(1,6) and B (10,-12) in the ratio 4:5 About the author Caroline
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 ) in the ratio m:n, then (x,y)=( m+n mx 2 +nx 1 , m+n my 2 +ny 1 ) Let the points be A(5,−2) and B(9,6). Let a point P(x,y) divides AB in the ratio 3:1. Therefore, we have P(x,y)=( 3+1 3×9+1×5 , 3+1 3×6+1×(−2) ) P(x,y)=(8,4) Hence, the required point is (8,4). Reply
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
) in the ratio m:n, then
(x,y)=(
m+n
mx
2
+nx
1
,
m+n
my
2
+ny
1
)
Let the points be A(5,−2) and B(9,6). Let a point P(x,y) divides AB in the ratio 3:1.
Therefore, we have
P(x,y)=(
3+1
3×9+1×5
,
3+1
3×6+1×(−2)
)
P(x,y)=(8,4)
Hence, the required point is (8,4).