The answer/I hope this helps
The given endpoints are A (-1, 2) and B (7, 8).
Let the coordinates of P be (x,y)
Because AP:PB = 1:3, therefore
Cross multiply.
3(x+1) = 7 - x
3x + 3 = 7 - x
4x = 4
x = 1
Also,
Cross multiply.
3(y - 2) = 8 - y
3y - 6 = 8 - y
4y = 14
y = 7/2
Answer:
The coordinates of P are (1, 7/2)