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Find the equation of latus rectum of parabola y^2=100x.(a) x=25(b) x=-25(c) y=25(d) y=-25The question was posed to me by my school teacher while I was bunking the class.I want to ask this question from Conic Sections topic in chapter Conic Sections of Mathematics – Class 11

Answer»

Right ANSWER is (a) x=25

The best EXPLANATION: Comparing equation with y^2=4ax.

4a=100 => a=25. Line PASSING through focus PERPENDICULAR to AXIS is latus rectum.

Equation of latus rectum is x=a => x=25.



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