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25 votes
What are the coordinates of the point on the directed line segment from

(-4,-9) to (1, 1) that partitions the segment into a ratio of 3 to 2?

User Vmrvictor
by
5.2k points

2 Answers

11 votes

Answer:

(-1 , -3)

Step-by-step explanation

For unknown reason, I can't save the explanation in this space. It's detailed in the attachment

What are the coordinates of the point on the directed line segment from (-4,-9) to-example-1
User Chinedu Ofor
by
5.3k points
12 votes

Answer:

(- 1, - 3 )

Explanation:

Given endpoints (x₁, y₁ ) and (x₂, y₂ ) partitioned in the ratio m : n

Then using the Section formula the coordinates of the point are

(
(nx_(1)+mx_(2) )/(m+n),
(ny_(1)+my_(2) )/(m+n) )

Here (x₁, y₁ ) = (- 4, - 9), (x₂, y₂ ) = (1, 1) and m : n = 3 : 2 , then

(
(2(-4)+3(1))/(3+2) ,
(2(-9)+3(1))/(3+2) )

= (
(x)/(y) (-8+3)/(5),
(-18+3)/(5) )

= (
(-5)/(5),
(-15)/(5) )

= ( - 1, - 3 )

User Granit
by
5.2k points