To answer this question we will use the following formula for the point that divides a segment with endpoints (x,y) and (z,k) into a ratio a:b:
![((bx+az)/(a+b),(by+ak)/(a+b))\text{.}](https://img.qammunity.org/2023/formulas/mathematics/college/r6swk70vqspkzfwiiiv6sl2i4v39598abi.png)
Substituting b=1, a=2, (x,y)=(-1,2) and (z,k)=(8,15) in the above formula we get:
![((-1+16)/(2+1),(2+30)/(2+1)),](https://img.qammunity.org/2023/formulas/mathematics/college/h2ii0gk1p5o8dkkk5sswgl7bx9ht0eduxm.png)
simplifying the above result we get:
![((15)/(3),(32)/(3))=(5,(32)/(3))\text{.}](https://img.qammunity.org/2023/formulas/mathematics/college/2i4t6ygyqaxtkwcqzm78uu1ev530lihnin.png)
Answer:
(5, 32/3).