Based on the coordinates of S and T and the fact that R is the endpoint, the coordinates of R are (-1, -9).
What are the coordinates of R?
S is the midpoint of RT which means that it can be used to find the endpoint of R.
Using the mid-point formula, the value of x for the endpoint R is:
-4 = (x - 7) / 2
-8 = x - 7
x = -1
The value of y for the endpoint R is:
-6 = (y - 3) / 2
-12 = y - 3
y = -9
The endpoint R has coordinates of (-1, -9).
Find out more on the midpoint at https://brainly.com/question/5566419
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