alleryThe vertical line of the coordinate system is the:
An-axis
By-axis
Cx-axis
Dz-axis
Answer & Solution
Correct answer: B. y-axis
1. The two axes are drawn at right angles to each other.
2. The horizontal one is the x-axis.
3. The vertical one is called the y-axis.
4. So the answer is the y-axis.
_Source: syllabus Mathematics, Ch 1 'Orienting Yourself: The Use of Coordinates'_
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