201k views
1 vote
Given AC with A(3, 4) and C(-9, -2), if B

partitions AC such that the ratio of AB to BC
is 7:5, find the coordinates of B.

1 Answer

2 votes

Answer:

B = (- 4,
(1)/(2) )

Explanation:

Using the Section formula


x_(B) =
(7(-9)+5(3))/(7+5) =
(-63+15)/(12) =
(-48)/(12) = - 4


y_(B) =
(7(-2)+5(4))/(7+5) =
(-14+20)/(12) =
(6)/(12) =
(1)/(2)

Thus coordinates of B = (- 4,
(1)/(2) )

User Waterproof
by
8.3k points