Which of the following represents the x-axis in 3D geometry?
Which of the following represents the x-axis in 3D geometry?
- A. x/1 = y/0 = z/0
- B. x/0 = y/1 = z/0
- C. x/0 = y/0 = z/1
- D. x/1 = y/1 = z/1
Answer: A) x/1 = y/0 = z/0
Explanation: The x-axis passes through origin (0,0,0) and has direction ratios 1, 0, 0. Hence, x/1 = y/0 = z/0.
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