Answer:
Coordinates of B are (-3,-2)
Explanation:
AC in the horizontal direction is 14, so AB in the horizontal direction is 2/7 of 14 which is 4.
AC in the vertical direction is 7, so AB in the vertical direction is 2/7 of 7, which is 2.
To find the coordinates of B, you move right 4, and up 2 from A towards C.