Answer:
(-7, -1)
Explanation:
The ratio is 1:4, the total is 1 + 5 = 5, so the partition is at 1/5 of the total length.
x2 - x1 = 25 - (-15) = 40
1/5 * 40 = 8
-15 + 8 = -7
x = -7
y2 - y1 = 15 - (-5) = 20
1/5 * 20 = 4
-5 + 4 = -1
y = -1
Answer: (-7, 1)