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Which point lies on the line through the origin parallel to the x-axis?
A(5, 0, 0)
B(0, 2, 3)
C(0, 2, 0)
D(0, 0, 3)
Answer & Solution
Correct answer: A. (5, 0, 0)
Such a line has direction ratios 1, 0, 0, so only the x coordinate varies.
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