Same chapter2 marksDifficulty: Easy
Find the slope of the line passing through (2, 3) and (4, 7).
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2 marksDifficulty: Easy
What can you say about the slope of a line parallel to the y-axis?
Original Khojo Papers practice question — not from a past board paper.
Answer
A line parallel to the y-axis makes an angle of 90° with the x-axis, and tan 90° is not defined, so the slope of such a line is not defined. Its equation has the form x = a.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
A line parallel to the x-axis has slope zero, which is a different case entirely.
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