Answer:
(-8,10)
Explanation:
The distance is given by the formula
d = sqrt( (x2-x1)^2 + (y2-y1) ^2)
d = sqrt( (20--20) ^2 + (10-10) ^2))
d = sqrt( (20+20)^2 + 0)
d = sqrt(40^2)
d = 40
We want a ratio of 3 to 7
The total is 3+7 = 10
Divide 40 by 10 = 4
Multiply 3 and 7 by 4 to get the correct ration
3*4: 7*4
12: 28
Add 12 to the starting point and the ratio will be correct
-20+12 = -8 for the x coordinate, the y coordinate does not change y=10
(-8,10)