The inclination of a vertical line is:
ASixteen degrees
BNinety degrees
CNineteen degrees
DSixty degrees
Answer & Solution
Correct answer: B. Ninety degrees
1. A vertical line runs parallel to the y-axis.
2. It meets the x-axis square on.
3. The inclination of a vertical line is ninety degrees.
4. That is exactly where the slope stops being defined.
_Source: NCERT Class XI Mathematics, Ch 9 'Straight Lines'_
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