Last Updated on May 11, 2023
We can let the coordinates of Q be (x, y). Since the origin (0, 0) is the midpoint of PQ, we have:
(r + x)/2 = 0 and (s + y)/2 = 0
Multiplying each equation by 2, we have:
r + x = 0 and s + y = 0
x = -r and y = -s
Thus, the coordinates of Q are (-r, -s).
Answer: E
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