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What is the slope of a line which is parallel to x-axis?(a) -1(b) 0(c) 1(d) Not definedThis question was addressed to me in an interview for internship.My doubt is from Slope of a Line topic in section Straight Lines of Mathematics – Class 11

Answer» RIGHT answer is (b) 0

Explanation: If a line is parallel to x-axis then angle FORMED by it with x-axis is zero. So, its INCLINATION is zero. Hence SLOPE = tan 0° = 0.


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