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Elza [17]
3 years ago
12

What are the me and you

Mathematics
1 answer:
kobusy [5.1K]3 years ago
4 0

Complete question:

What are the x- and y- coordinates of point E, which partitions the directed line segment from A\:(- 4,\:9) \:to\: B\:(2,\:- 3) into a ratio of 1 : 2.

Answer:

(C) (-2,5)

Step-by-step explanation:

x = (\dfrac{m}{m+n}) (x_2-x_1) + x_1\\\\y = (\dfrac{m}{m+n}) (y_2-y_1) + y_1

(x_1,y_1)=(- 4,\:9),(x_2,y_2)=B\:(2,\:- 3)

m=1, n=2

x = \left(\dfrac{1}{1+2}\right) (2-(-4)) + (-4)\\=\left(\dfrac{1}{3}\right) (2+4)-4\\=\left(\dfrac{6}{3}\right)-4=2-4\\x=-2

y = \left(\dfrac{1}{1+2}\right) (-3-9) + 9\\=\left(\dfrac{1}{3}\right) (-12)+9\\=\left(-\dfrac{12}{3}\right)+9=-4+9\\y=5

The x- and y-coordinates of the point E is (-2,5)

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