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Find the equation of line parallel to y-axis and passing through (3, 4).(a) x=3(b) x=4(c) y=4(d) y=3I had been asked this question in semester exam.I would like to ask this question from General Equation of a Line in portion Straight Lines of Mathematics – Class 11

Answer» CORRECT answer is (a) x=3

Best explanation: LET general equation of LINE be y=m (x-d) => x = y/m +d

Since line is parallel to y-axis so, m=1/0 or 1/m =0

=>x=d => x=3 by SUBSTITUTING the POINT (3, 4).


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