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The midpoint of points with position vectors 2i + 4j and 6i + 8j has position vector
A4i + 6j
B3i + 4j
C8i + 12j
D2i + 2j
Answer & Solution
Correct answer: A. 4i + 6j
The midpoint is half the sum of the vectors, (8i + 12j)/2 = 4i + 6j.
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