The coordinates of P are (-13, -3), given the coordinates of Q as (7, 5) and the coordinates of the midpoint of PQ as (-3, 1).
The midpoint of AB, given any points A (x₁, y₁) and B(x₂, y₂) is given as point M = ({(x₁ + x₂)/2},{(y₁ + y₂)/2}).
In the question, we are given that the midpoint of PQ is (-3, 1) and point Q is (7, 5).
We are asked to find the coordinates of point P.
We assume the coordinates of point P as (x, y).
Thus, the midpoint of PQ = ({(x + 7)/2}, {(y + 5)/2}),
that is, (-3, 1) = ({(x + 7)/2}, {(y + 5)/2}).
Thus, we can show that:
(x + 7)/2 = -3,
or, x + 7 = -6,
or, x = -6 - 7 = -13.
(y + 5)/2 = 1,
or, y + 5 = 2,
or, y = 2 - 5 = -3.
Thus, the coordinates of P are (-13, -3), given the coordinates of Q as (7, 5) and the coordinates of the midpoint of PQ as (-3, 1).
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