lexrivera13
lexrivera13 lexrivera13
  • 24-01-2020
  • Mathematics
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Find the coordinates of point B on line AC such that AB is 2/3 of AC

Find the coordinates of point B on line AC such that AB is 23 of AC class=

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gmany
gmany gmany
  • 25-01-2020

Answer:

B(-3, 1)

Step-by-step explanation:

Let's calculate the distance between the corresponding coordinates of points A and C.

[tex]A(1,\ -5),\ C(-5,\ 4)\\\\|AC|_x=|-5-1|=|-6|=6\\\\|AC|_y=|4-(-5)|=|4+5|=|9|=9[/tex]

We find such B that

[tex]|AB|=\dfrac{2}{3}|AC|=\dfrac{2|AC|}{3}[/tex]

Calculate the unit of division

[tex]a_x=\dfrac{6}{3}=2\\\\b_y=\dfrac{9}{3}=3[/tex]

Therefore the coordinateso f the point B are:

[tex]B(x+2,\ y-3)\\\\x+2=-5+2=-3\\\\y-3=4-3=1\\\\\boxed{B(-3,\ 1)}[/tex]

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