keepcalmands8519 keepcalmands8519
  • 17-06-2020
  • Mathematics
contestada

Find the coordinates of point b on ac such that the ratio of AB to BC is 2:1

A(2,-5)

C(-4,7)

Please help!!
Giving brainliest!

Respuesta :

joaobezerra joaobezerra
  • 21-06-2020

Answer:

(-2, 3)

Step-by-step explanation:

The point B is:

B(x,y)

x

AB(A to B) is twice BC(B to C)

AB is 2 - x. BC is x - (-4) = x + 4.

So

2 - x = 2(x + 4)

2 - x = 2x + 8

3x = -6

x = -2

y

Same logic as above.

AB is -5 - y. BC is y - 7.

-5 - y = 2(y - 7)

-5 - y = 2y - 14

3y = 9

y = 3

The point is (-2, 3).

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