Answer:
x=-2.6
y=5.2
Explanation:
The endpoint of line AB are at:
A(-4,8) and B(2,-4)
The x-coordinate of the point that divides this AB in the ratio m:n=3:10 is
![x=(mx_2+nx_1)/(m+n)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/b1o924wwr88akg07jqljgq7fa8zrbxzqu3.png)
We substitute the given values to obtain;
![x=(3(2)+10(-4))/(3+10)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/1tht4w0dplvwve81idjsgm65hfpoobvyfw.png)
We simplify to get:
![x=(6-40)/(13)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ikwilu8437alttz1avnti3l9a6rz59226a.png)
![x=(-34)/(13)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/jotmzzed9ijv9n5jyylxfrdst0qfqljnpv.png)
![x=-2.6](https://img.qammunity.org/2020/formulas/mathematics/middle-school/s5jrrrkzxybaf54mh7fwx9et8z7pz3o7c8.png)
The y-coordinate of the point that divides this AB in the ratio m:n=3:10 is
![y=(my_2+ny_1)/(m+n)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/o0ou2x1q1swjcx7m0xja2bhasexl7a80gl.png)
We substitute the given values to obtain;
![y=(3(-4)+10(8))/(3+10)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/abic3tvu0igkklude1bktqskzzifv18bf2.png)
We simplify to get:
![y=(-12+80)/(13)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/tavu0xfdqtgvf8govexm5ttrgfwrh8i5tx.png)
![y=(68)/(13)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/kb9eg9ykhofk6oatv9hob4bom77dnwcior.png)
![y=5.2](https://img.qammunity.org/2020/formulas/mathematics/middle-school/nehwf89nm4op8s6sfhhuw60eecktbb4m7x.png)