Using proportions, it is found that the coordinates of p in the line segment are given as follows: (-1,2).
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
In this problem, the points are:
p is two-thirds the length of the line segment from a to b, hence:

For the x-coordinate, we have that:

x - 9 = -10
x = -1
For the y-coordinate, we have that:

y + 8 = 10
y = 2.
The coordinates of p are (-1,2).
More can be learned about proportions at brainly.com/question/24372153
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