The slope of the x-axis itself works out to:
ATen exactly
BZero exactly
COne exactly
DTwo exactly
Answer & Solution
Correct answer: B. Zero exactly
1. The x-axis has an inclination of zero.
2. The tangent of zero is zero.
3. So the slope of the x-axis is zero.
_Source: NCERT Class 11 Mathematics, Chapter 10, Straight Lines._
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