Answer :

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).

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