Answer:
B...(5,-7)
Explanation:
If AB = 1/5 AC
Then for the x coordinate of B
we then say...,
;(8 - - 7) = 15
;1/5 × 15 = 3
; then subtract 3 from the x-coordinate of A
; 8 - 3 = 5
Then for the y coordinate of B
we then say....,
;(-8 - - 3 ) = -5
;1/5 × (-5) = -1
;then subtract (-1) from the y coordinate of A
; (-8 - - 1) = -7
Coordinates of B....(5,-7)