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If slope of a line is 2/3 then find the slope of line perpendicular to it.(a) -3/2(b) 3/2(c) 2/3(d) -2/3I got this question in semester exam.My question is based upon Various Forms of the Equation of a Line in division Straight Lines of Mathematics – Class 11

Answer»

The correct answer is (a) -3/2

Best explanation: If LINES with slopes m1 and M2 are PERPENDICULAR then m1 * m2 = – 1.

If m1 = 2/3 then m2 = -1 / (2/3) = -3/2.



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