Respuesta :

Given :

First point (A) = (-2,4)

Second point (B) = (7,-2)

ratio is 1:2

If the point is :

[tex]\begin{gathered} (x_1,y_1)_{} \\ \text{and} \\ (x_2,y_{2)} \end{gathered}[/tex]

line sigmrnt ratio is m:n then point is:

[tex](x^{\prime},y^{\prime})=(\frac{mx_1+nx_2}{m+n},\frac{my_1+ny_2}{m+n})[/tex]

If

[tex]\begin{gathered} m=1 \\ n=2 \\ x_1=-2 \\ x_2=7 \\ y_1=4 \\ y_2=-2 \end{gathered}[/tex]

a partition of AB in ratio 1:2

So "B" point distance from A point is:

[tex]\begin{gathered} =7-(-2) \\ =7+2 \\ =9 \end{gathered}[/tex]

ratio is 1:2 would be divide is 1/3.

so distance 9 is:

[tex]\frac{9}{3}=3[/tex]

Coordinates form A point is:

[tex]\begin{gathered} =3+(-2) \\ =3-2 \\ =1 \end{gathered}[/tex]

Y coordinates B point to A point is:

[tex]\begin{gathered} =4-(-2) \\ =4+2 \\ =6 \end{gathered}[/tex]

Ratio is 1:2 that mean:

[tex]\begin{gathered} =\frac{6}{3} \\ =2 \end{gathered}[/tex]

y coordinates from A point is:

[tex]\begin{gathered} =4-2 \\ =2 \end{gathered}[/tex]

So the point is (1,2)